The Federation's Keepers: Similar series
Kinsmen
by Ilona Andrews
4.21 · 251 ratings
open-door · graphic-violence · standalone · cold hero · strong heroine · urban fantasy · dystopian · vengeance · tycoon · standalone-first · magic · super rich hero · futuristic · independent heroine · aliens · dangerous heroine · competent heroine · alpha male · m-f · betrayal
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Urf Oomons
by Bebe Harper
3.46 · 123 ratings
science fiction · aliens · humor · explicit-open-door · non-human-hero · audiobook · m-f · forced proximity · curvy heroine · length-novella · insta-love · competent heroine · length-short · monsters · creative-anatomy · abduction · multicultural · cheerful heroine · first-person-pov · height-difference
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Office Aliens
by V.C. Lancaster
3.83 · 123 ratings
science fiction · futuristic · m-f · creative-anatomy · aliens · length-novella · non-human-hero · length-medium · explicit-open-door · possessive hero · humor · competent heroine · office · substance abuse · working class hero · shy-hero · nerdy-hero · first-in-series · death · standalone-first
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Alien Barbarians of Zandipor
by Kim Fox
3.59 · 33 ratings
futuristic · humor · aliens · science fiction · military · length-novella · standalone-first · possessive hero · sassy heroine · insta-love · explicit-open-door · standalone · first-in-series · alpha male
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Star Brides
by Solange Ayre
3.04 · 30 ratings
futuristic · m-f · contemporary · length-novella · aliens · science fiction · breeding · paranormal · first-in-series · standalone-first · erotica · abduction · fantasy
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Arixxia Fields
by Alana Khan
4.28 · 46 ratings
humor · length-short · fantasy · science fiction · non-human-hero · fated-mates · aliens · paranormal · length-novella · m-f · explicit-open-door · insta-love · primal-play · standalone-first · historical · first-in-series · magic · futuristic · monsters · christmas
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Ka'atari Warriors
by Kenzie Kelly
4.10 · 26 ratings
humor · military · science fiction · aliens · explicit-open-door · length-novella · first-in-series · erotica · standalone-first · insta-love · futuristic · paranormal · length-short
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Vampire King
by Kenya Wright
3.92 · 25 ratings
aliens · science fiction · contemporary · vampires · length-novella · explicit-open-door · royalty · m-f · first-in-series · standalone-first · erotica · menage
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Interstellar Brides: Ascension Saga
by Grace Goodwin
4.29 · 114 ratings
military · science fiction · aliens · futuristic · multicultural · length-novella · fated-mates · non-human-hero · aristocratic heroine · mystery · strong heroine · possessive hero · explicit-open-door · gifted heroine · sassy heroine · suspense · m-f · non-human-heroine · spanking · praise-kink
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Dakonian Alien Mail Order Brides
by Cara Bristol
3.97 · 56 ratings
science fiction · aliens · futuristic · dual-pov · humor · m-f · fated-mates · length-novella · length-short · non-human-hero · fatphobia · first-in-series · sassy heroine · heroine sleuth · open-door · childfree-couple · strong heroine · contemporary · standalone-first · tall-heroine
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Warlords of Aegir
by Luna Hunter
4.00 · 19 ratings
military · science fiction · length-novella · humor · shapeshifters · aliens · fantasy · paranormal · m-f · royalty · first-in-series · standalone-first
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Conquered Mates
by Athena Storm
4.38 · 60 ratings
science fiction · paranormal · length-short · dark · aliens · fantasy · length-novella · futuristic · bdsm · bad boys · from hate to love · commander · explicit-open-door · standalone-first · first-in-series
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Astral Mates
by Chloe Joel
3.33 · 21 ratings
futuristic · science fiction · length-novella · aliens · fantasy · first-in-series · paranormal · standalone-first · multicultural
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Cryo Crisis
by Deiri Di
4.02 · 65 ratings
aliens · science fiction · military · length-novella · explicit-open-door · non-human-hero · m-f · abduction · futuristic · third-person-pov · creative-anatomy · possessive hero · humor · strong heroine · multicultural · fighters · forced proximity · sweet-hero · virgin hero · curvy heroine
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Dragon Brides
by Kate Rudolph
4.14 · 57 ratings
science fiction · military · aliens · audiobook · shapeshifters · paranormal · length-novella · m-f · fated-mates · fantasy · forced proximity · dual-pov · alpha male · dragon shifter · explicit-open-door · non-human-hero · length-short · competent heroine · third-person-pov · working class heroine
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Nova Brides
by Thea Dane
3.83 · 23 ratings
humor · aliens · science fiction · multicultural · length-novella · length-short · futuristic · black-mc · creative-anatomy · explicit-open-door · standalone-first · heroine sleuth · non-human-hero · possessive hero · height-difference · fated-mates · tall-heroine · first-person-pov · dual-pov · african-american
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Tharan Warrior Menage
by Kallista Dane
4.00 · 17 ratings
science fiction · futuristic · aliens · length-novella · length-short · erotica · cruel hero · menage · fighters · insta-love · age difference · abduction · disabilities and marks · tortured hero
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Olympia Alien Mail Order Brides
by K. Cantrell
3.10 · 10 ratings
futuristic · science fiction · aliens · military · length-novella · independent heroine · small town · sunny hero · past-abuse · explicit-plentiful · pregnancy · working class heroine · humor · bodyguard-hero · competent heroine · explicit-open-door · mental-trauma · non-human-hero · arranged marriage · himbo
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Little Alien Encounters
by A. Little
4.41 · 17 ratings
m-m · science fiction · queer · audiobook · age play · aliens · length-novella · fantasy · length-short · standalone-first · first-in-series · paranormal
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Uoria Mates II
by Ruth Anne Scott
4.30 · 23 ratings
science fiction · aliens · futuristic · length-novella · standalone-first · first-in-series · length-short
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Captured Earth
by T.J. Nichols
4.33 · 6 ratings
aliens · military · science fiction · queer · m-m · length-novella · first-in-series · standalone-first
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Perinqual Galaxy Aliens
by C.Y. Croc
4.29 · 7 ratings
science fiction · length-novella · aliens · suspense · multicultural · fantasy · military · first-in-series · african-american · superheroes · length-short · standalone-first · black-mc
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Mate Hunt
by Riley Onyx
4.00 · 1 ratings
shapeshifters · suspense · aliens · science fiction · length-novella · standalone-first · arthurian · first-in-series
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