The Alliance: Similar romance series

Horde Kings of Dakkar

by Zoey Draven

4.08 · 1498 ratings

futuristic · fated-mates · forced proximity · aliens · death · height-difference · royalty · science fiction · commander · competent heroine · audiobook · alpha male · m-f · possessive hero · betrayal · pregnancy · non-human-hero · explicit-open-door · first-person-pov · class difference

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Penryn & the End of Days

by Susan Ee

4.19 · 557 ratings

alpha male · possessive hero · war · betrayal · glimpses-kisses · cold hero · warrior-heroine · non-human-hero · mental-trauma · graphic-violence · fighters · tortured heroine · first-person-pov · disabilities and marks · tortured hero · secret-relationship · vengeance · dystopian · angst · strong heroine

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Corsairs

by Ruby Dixon

3.88 · 446 ratings

non-human-hero · explicit-open-door · first-person-pov · military · possessive hero · slow burn · dual-pov · creative-anatomy · pirates · futuristic · forced proximity · aliens · erotica · m-f · science fiction · insta-love · tortured heroine · caretaking · human-trafficking · sweet-hero

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Fireblood Dragons

by Ruby Dixon

3.79 · 1046 ratings

audiobook · alpha male · dragon shifter · science fiction · shapeshifters · aliens · futuristic · dystopian · explicit-open-door · m-f · urban fantasy · usa · fated-mates · non-human-hero · texas · possessive hero · erotica · length-medium · north-america · monsters

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Risdaverse

by Ruby Dixon

3.96 · 1893 ratings

aliens · dual-pov · science fiction · first-person-pov · m-f · non-human-hero · futuristic · explicit-open-door · height-difference · sweet-hero · creative-anatomy · multicultural · possessive hero · past-abuse · small town · independent heroine · slow burn · insta-love · tortured heroine · audiobook

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Alpha's Claim

by Addison Cain

3.92 · 474 ratings

from hate to love · abuse · science fiction · explicit-plentiful · paranormal · commander · alpha male · m-f · betrayal · audiobook · fantasy · rape · abduction · dystopian · angst · strong heroine · omegaverse · dark · bdsm · cruel hero

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Tornians

by M.K. Eidem

4.09 · 422 ratings

alpha male · science fiction · aliens · explicit-open-door · erotica · audiobook · futuristic · m-f · possessive hero · royalty · non-human-hero · insta-love · contemporary · strong heroine · military · pregnancy · length-medium · length-novella · sweet heroine · disabilities and marks

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Vandalar Concubines

by V.K. Ludwig

3.84 · 229 ratings

science fiction · humor · aliens · competent heroine · m-f · length-short · futuristic · independent heroine · dual-pov · explicit-open-door · audiobook · erotica · boss & employee · sassy heroine · forced proximity · possessive hero · alpha male · slavery · monsters · grumpy sunshine

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Dark World Mates

by Olivia Riley

3.86 · 182 ratings

military · strong heroine · aliens · audiobook · m-f · science fiction · non-human-hero · graphic-violence · possessive hero · survival · multicultural · death · monsters · futuristic · alpha male · torture-mcs · open-door · fighters · explicit-open-door · human-trafficking

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The Alliance

by S.E. Smith

4.01 · 200 ratings

science fiction · audiobook · futuristic · aliens · length-short · dystopian · m-f · alpha male · virgin heroine · non-human-hero · open-door · urban fantasy · erotica · possessive hero · independent heroine · military · abduction · pregnancy · explicit-open-door · fighters

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Accidental Alien Brides

by January Bell

4.07 · 291 ratings

science fiction · military · non-human-hero · humor · aliens · dual-pov · explicit-open-door · audiobook · possessive hero · first-person-pov · forced proximity · length-short · futuristic · arranged marriage · strong heroine · slow burn · creative-anatomy · caretaking · warrior-heroine · fighters

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Alien Overlords

by Taylor Vaughn

3.88 · 216 ratings

science fiction · multicultural · futuristic · audiobook · black-mc · african-american · aliens · explicit-open-door · alpha male · height-difference · abuse · dual-pov · rape · dystopian · creative-anatomy · abduction · dark · insta-love · non-human-hero · breeding

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The Kraken

by Tiffany Roberts

3.92 · 215 ratings

explicit-open-door · futuristic · aliens · m-f · erotica · audiobook · science fiction · possessive hero · creative-anatomy · non-human-hero · insta-love · strong heroine · small town · forced proximity · length-medium · monsters · competent heroine · alpha male · forbidden love · from hate to love

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Cosmos' Gateway

by S.E. Smith

4.10 · 180 ratings

science fiction · futuristic · aliens · m-f · alpha male · audiobook · virgin heroine · open-door · pregnancy · non-human-hero · length-medium · sweet-hero · erotica · possessive hero · length-short · military · royalty · strong heroine · fated-mates · insta-love

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Zandian Masters

by Renee Rose

3.86 · 226 ratings

bdsm · audiobook · science fiction · futuristic · non-human-hero · m-f · spanking · aliens · alpha male · height-difference · explicit-plentiful · forced proximity · third-person-pov · multicultural · past-abuse · war · possessive hero · slavery · dual-pov · insta-love

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Interstellar Brides

by Grace Goodwin

4.04 · 606 ratings

science fiction · audiobook · military · futuristic · aliens · non-human-hero · length-short · m-f · dual-pov · alpha male · first-person-pov · male-pov · possessive hero · fighters · multicultural · fated-mates · height-difference · erotica · explicit-plentiful · spanking

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Interstellar Brides Program: The Beasts

by Grace Goodwin

3.91 · 180 ratings

insta-love · aliens · science fiction · shapeshifters · audiobook · military · explicit-open-door · futuristic · non-human-hero · length-short · vampires · m-f · alpha male · possessive hero · florida · north-america · usa · erotica · first-person-pov · fighters

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Interstellar Brides: The Colony

by Grace Goodwin

4.18 · 188 ratings

science fiction · alpha male · audiobook · aliens · futuristic · dual-pov · military · non-human-hero · multicultural · possessive hero · shapeshifters · m-f · independent heroine · fated-mates · length-short · explicit-plentiful · strong heroine · first-person-pov · fighters · height-difference

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Interstellar Brides: The Virgins

by Grace Goodwin

4.10 · 81 ratings

non-human-hero · military · futuristic · aliens · science fiction · bondage · fated-mates · breeding · spanking · praise-kink · possessive hero · anal sex · audiobook · alpha male · dual-pov · fetish · gifted heroine · shapeshifters · fighters · virgin heroine

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Alien Wolf Tales

by Honey Phillips

4.29 · 64 ratings

werewolves · aliens · fantasy · futuristic · m-f · paranormal · science fiction · shapeshifters · explicit-open-door · non-human-hero · poor heroine · possessive hero · sweet heroine · forced proximity · working class heroine · virgin heroine · multicultural · dual-pov · third-person-pov · grumpy sunshine

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Oath Forger

by Nia Mars

3.92 · 68 ratings

shy heroine · nerdy-hero · aliens · age difference · super rich hero · length-short · fated-mates · futuristic · reverse harem · independent heroine · poly · m-f · alpha male · commander · competent heroine · royalty · science fiction · height-difference · first-person-pov · military

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Love and War

by R.A. Steffan

3.85 · 30 ratings

futuristic · aliens · audiobook · science fiction · mental-trauma · racism · third-person-pov · dual-pov · creative-anatomy · angst · death · length-short · suspense · m-f · non-human-hero · strong heroine · slavery · forced proximity · independent heroine · political-intrigue

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Detyen Warriors

by Kate Rudolph

3.50 · 22 ratings

open-door · science fiction · dual-pov · alpha male · suspense · aliens · forced proximity · futuristic · death · military · non-human-hero · new adult · audiobook · length-short · abduction · strong heroine · competent heroine · cold hero · fated-mates · insta-love

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The Intergalactic Union

by Natasha Campbell-Jones

3.40 · 15 ratings

gifted heroine · first-person-pov · tortured heroine · military · past-abuse · fem-dom · non-human-hero · torture-mcs · abuse-non-mc · mental-trauma · human-trafficking · praise-kink · war · sunny hero · survival · sweet-hero · strong heroine · third-person-pov · friends to lovers · abduction

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by S.E. Smith

The Alliance: Similar series

by Zoey Draven

by Susan Ee

by Ruby Dixon

by Ruby Dixon

by Ruby Dixon

by Addison Cain

by M.K. Eidem

by V.K. Ludwig

by Olivia Riley

by S.E. Smith

by January Bell

by Taylor Vaughn

by Tiffany Roberts

by S.E. Smith

by Renee Rose

by Grace Goodwin

by Grace Goodwin

by Grace Goodwin

by Grace Goodwin

by Honey Phillips

by Nia Mars

by R.A. Steffan

by Kate Rudolph

by Natasha Campbell-Jones