Sinth Strain: Similar romance series

Horde Kings of Dakkar

by Zoey Draven

4.09 · 1618 ratings

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

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For the Love of Aliens

by C.M. Stunich

4.22 · 362 ratings

poly · contemporary · height-difference · sassy heroine · forbidden love · working class heroine · explicit-plentiful · bad boys · fated-mates · reverse harem · futuristic · aliens · male-pov · strong heroine · grumpy sunshine · survival · dual-pov · men in uniform · cowboys · double-penetration

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Argurma Salvager

by SJ Sanders

3.98 · 112 ratings

non-human-hero · explicit-open-door · pregnancy · aliens · possessive hero · fated-mates · audiobook · competent heroine · creative-anatomy · science fiction · sweet heroine · fighters · cold hero · monsters · length-short · m-f · alpha male · dystopian · death · pirates

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Awakened Womb

by Hawke Oakley

3.76 · 106 ratings

m-m · height-difference · new adult · queer · science fiction · creative-anatomy · multicultural · audiobook · sweet-hero · dual-pov · found-family · length-short · fated-mates · breeding · futuristic · anal sex · aliens · pregnancy · explicit-open-door · non-human-hero

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Ruthless Warlords

by Alison Aimes

3.73 · 155 ratings

science fiction · mafia · non-human-heroine · fated-mates · omegaverse · audiobook · alpha male · m-f · paranormal · aliens · futuristic · vengeance · third-person-pov · possessive hero · praise-kink · tortured heroine · non-human-hero · explicit-plentiful · gifted heroine · suspense

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The Alien's Omega

by Sienna Sway

3.81 · 126 ratings

science fiction · queer · aliens · omegaverse · m-m · non-human-hero · explicit-open-door · first-person-pov · futuristic · fated-mates · anal sex · dual-pov · sweet-hero · hurt-comfort · height-difference · creative-anatomy · virgin hero · forced proximity · men in uniform · alpha male

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Xarc'n Warriors

by Lynnea Lee

4.20 · 338 ratings

science fiction · fated-mates · futuristic · aliens · m-f · dual-pov · creative-anatomy · fighters · dystopian · length-short · explicit-open-door · post-apocalyptic · insta-love · alpha male · audiobook · non-human-hero · paranormal · first-person-pov · caretaking · survival

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Mail-Order Brides of Crakair

by Ava Ross

3.99 · 149 ratings

aliens · science fiction · m-f · audiobook · humor · length-short · fated-mates · dystopian · non-human-hero · military · new adult · marriage of convenience · arranged marriage · explicit-open-door · suspense · height-difference · career professional · possessive hero · sweet heroine · insta-love

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Interstellar Brides Program: Rogues

by Grace Goodwin

4.30 · 61 ratings

non-human-hero · fighters · first-person-pov · military · vampires · dual-pov · fated-mates · futuristic · male-pov · aliens · height-difference · shapeshifters · science fiction · m-f · alpha male · audiobook · war · possessive hero · bodyguard-hero · graphic-violence

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Kadrixan Mates

by Lynnea Lee

3.92 · 97 ratings

science fiction · length-short · audiobook · aliens · m-f · dual-pov · suspense · dystopian · new adult · explicit-open-door · non-human-hero · fated-mates · war · alpha male · commander · paranormal · competent heroine · strong heroine · creative-anatomy · abduction

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The Darvel Exploratory Systems

by SJ Sanders

3.78 · 94 ratings

science fiction · aliens · m-f · audiobook · length-medium · futuristic · creative-anatomy · non-human-hero · alpha male · fated-mates · forced proximity · dual-pov · sweet heroine · explicit-open-door · paranormal · betrayal · found-family · poly · height-difference · forbidden love

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Mates for the Raskarrans

by Heather Fox

4.06 · 183 ratings

science fiction · fated-mates · futuristic · aliens · explicit-open-door · non-human-hero · dual-pov · m-f · virgin hero · sweet-hero · length-short · strong heroine · forced proximity · death · grumpy sunshine · multicultural · survival · insta-love · caretaking · first-person-pov

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First Ordinance

by Connie Suttle

4.12 · 85 ratings

aliens · length-medium · demons · audiobook · magic · vampires · menage · poly · futuristic · reverse harem · shapeshifters · time travel · paranormal · werewolves · post-apocalyptic · abuse · fantasy · young adult · science fiction · dystopian

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Xarc'n Warriors: Mountains

by Lynnea Lee

4.31 · 118 ratings

dystopian · science fiction · aliens · futuristic · m-f · explicit-open-door · length-short · dual-pov · virgin hero · fated-mates · fantasy · paranormal · monsters · creative-anatomy · post-apocalyptic · alpha male · strong heroine · pregnancy · insta-love · from hate to love

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Lords of Destra

by Ella Blake

4.01 · 184 ratings

science fiction · aliens · audiobook · length-short · fated-mates · m-f · multicultural · explicit-open-door · insta-love · non-human-hero · futuristic · from hate to love · forced proximity · career professional · explicit-plentiful · abduction · commander · competent heroine · alpha male · dual-pov

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Warrior Mates of Zivon

by Presley Hall

4.14 · 116 ratings

aliens · length-short · audiobook · m-f · alpha male · science fiction · explicit-open-door · non-human-hero · abduction · fated-mates · multicultural · human-trafficking · strong heroine · tortured hero · death · forced proximity · independent heroine · abuse · height-difference · sweet-hero

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Fated Mates of Adonia

by Ivy Sparks

3.91 · 38 ratings

explicit-open-door · length-short · fated-mates · aliens · multicultural · audiobook · science fiction · non-human-hero · abuse-non-mc · super rich hero · exhibitionism · competent heroine · dual-pov · m-f · royalty · rape-non-mc · abuse · insta-love · dark · torture-mcs

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Xian Warriors

by Regine Abel

4.23 · 135 ratings

military · non-human-hero · m-f · audiobook · science fiction · multicultural · creative-anatomy · aliens · humor · futuristic · explicit-open-door · competent heroine · suspense · strong heroine · virgin hero · fated-mates · war · gifted heroine · insta-love · bodyguard-hero

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Warlords Of Atera

by Celia Kyle

3.89 · 32 ratings

aliens · audiobook · non-human-hero · science fiction · military · fated-mates · length-short · humor · competent heroine · commander · m-f · multicultural · virgin hero · sweet heroine · shy heroine · graphic-violence · explicit-open-door · tortured heroine · death · caretaking

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The Fallen World

by C.R. Jane

3.82 · 37 ratings

poly · science fiction · new adult · non-human-hero · aliens · possessive hero · futuristic · reverse harem · alpha male · contemporary · abduction · dystopian · first-person-pov · nerdy-hero · usa · explicit-open-door · forced proximity · length-short · breeding · body-betrayal

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Ice World Warriors

by Jessica Grayson

3.93 · 63 ratings

science fiction · fated-mates · length-short · aliens · abduction · shapeshifters · abuse · paranormal · m-f · futuristic · dual-pov · possessive hero · non-human-hero · abuse-non-mc · mental-trauma · first-person-pov · tortured heroine · male-pov · fantasy · slavery

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Sinth Strain

by Pearl Tate

4.33 · 27 ratings

aliens · science fiction · dystopian · length-short · multicultural · post-apocalyptic · audiobook · vampires · fated-mates · m-f · military · alpha male · length-novella · strong heroine · paranormal · fantasy · abduction

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Alien Fated Mates for Ajnara Warriors

by Pearl Tate

4.33 · 21 ratings

dystopian · science fiction · aliens · humor · length-short · sweet heroine · military · fated-mates · war · abduction · abuse · slow burn · suspense · multicultural · cold hero · curvy heroine · length-medium · dark · insta-love · alpha male

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Dream Team Shifters

by Leela Ash

4.57 · 7 ratings

caretaking · insta-love · aliens · fantasy · forced proximity · fated-mates · length-short · m-f · contemporary · paranormal · science fiction · shapeshifters · non-human-hero · pregnancy · humor · possessive hero · found-family · alpha male · multicultural · political-intrigue

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by Pearl Tate

Sinth Strain: Similar series

by Zoey Draven

by C.M. Stunich

by SJ Sanders

by Hawke Oakley

by Alison Aimes

by Sienna Sway

by Lynnea Lee

by Ava Ross

by Grace Goodwin

by Lynnea Lee

by SJ Sanders

by Heather Fox

by Connie Suttle

by Lynnea Lee

by Ella Blake

by Presley Hall

by Ivy Sparks

by Regine Abel

by Celia Kyle

by C.R. Jane

by Jessica Grayson

by Pearl Tate

by Pearl Tate

by Leela Ash