The Federation's Keepers: Similar series
Dragon Lords of Valdier
by S.E. Smith
4.07 · 380 ratings
science fiction · aliens · futuristic · non-human-hero · shapeshifters · explicit-open-door · audiobook · dragon shifter · m-f · alpha male · fated-mates · length-novella · length-medium · independent heroine · strong heroine · possessive hero · erotica · magic · open-door · caretaking
All books in this series ❯
Holidate with an Alien
by Honey Phillips
4.10 · 104 ratings
science fiction · christmas · aliens · explicit-open-door · humor · m-f · length-novella · length-short · dual-pov · open-door · cold hero · virgin hero · pregnancy · futuristic · fantasy · super rich hero · friends to lovers · fated-mates · bad boys · mature couple
All books in this series ❯
Darklands
by Autumn Dawn
3.83 · 99 ratings
m-f · futuristic · science fiction · shapeshifters · aliens · fantasy · werewolves · paranormal · length-novella · length-short · erotica · contemporary · young adult · length-medium · urban fantasy · magic · alpha male · misogyny
All books in this series ❯
Sponsored links
The Omega Collective
by Mina Carter
4.16 · 66 ratings
m-f · men in uniform · dub-con · science fiction · dystopian · from hate to love · abduction · tortured heroine · explicit-open-door · non-human-hero · fantasy · omegaverse · aliens · fated-mates · possessive hero · length-novella · strong heroine · paranormal · mental-trauma · dark
All books in this series ❯
Immortal Essence
by RaShelle Workman
3.66 · 41 ratings
aliens · futuristic · fantasy · science fiction · length-novella · contemporary · urban fantasy · length-medium · length-short · dystopian · insta-love · paranormal
All books in this series ❯
Crucis Orc Trilogy
by Eden Ember
3.65 · 27 ratings
orcs · length-novella · fantasy · science fiction · aliens · paranormal · monsters · alpha male · pregnancy · fated-mates · abduction · breeding · single-father
All books in this series ❯
The Intergalactic Guide to Humans
by Skye MacKinnon
3.99 · 44 ratings
science fiction · humor · aliens · length-novella · audiobook · multicultural · m-f-m · childfree-couple · male-pov · reverse harem · futuristic · poly · m-f · menage · first-person-pov · non-human-hero · anal sex · cold hero · human-trafficking · possessive hero
All books in this series ❯
Vaxxlian Alien Mail Order Brides
by Sue Mercury
4.25 · 59 ratings
futuristic · aliens · dual-pov · science fiction · m-f · explicit-open-door · length-novella · non-human-hero · open-door · paranormal · usa · virgin heroine · marriage of convenience · dystopian · creative-anatomy · virginia · insta-love · past-abuse · fated-mates · shapeshifters
All books in this series ❯
Starwalkers
by Julia Crane
4.35 · 20 ratings
science fiction · length-novella · aliens · young adult · futuristic · military · contemporary · urban fantasy · magic · legends & fairy tales · dystopian
All books in this series ❯
Terran Times Second Wave
by Viola Grace
3.83 · 174 ratings
science fiction · length-novella · m-f · futuristic · aliens · erotica · fantasy · shapeshifters · paranormal · breeding · fated-mates · contemporary · non-human-hero
All books in this series ❯
Red Planet Fated Mates
by Miranda Martin
4.58 · 53 ratings
science fiction · length-novella · aliens · paranormal · dragon shifter · audiobook · shapeshifters · fighters · survival · post-apocalyptic · age difference · warrior-heroine · alpha male · black-mc · mature couple · disabilities and marks · abduction · forbidden love
All books in this series ❯
Celestial Angels
by Rosette Lex
3.29 · 21 ratings
futuristic · science fiction · length-novella · aliens · dystopian · paranormal · fantasy · cruel hero
All books in this series ❯
Falcon Station
by Isla Noir
3.71 · 14 ratings
length-novella · fantasy · science fiction · paranormal · aliens · audiobook · monsters · humor · shapeshifters · non-human-hero
All books in this series ❯
Black Planet
by Belinda McBride
3.71 · 7 ratings
science fiction · length-novella · futuristic · paranormal · aliens · menage · fantasy · multicultural
All books in this series ❯
Alien Warrior Brides
by Taylor Neptune
3.66 · 16 ratings
military · futuristic · new adult · science fiction · aliens · multicultural · humor · length-novella · length-short · pregnancy · open-door · abduction · breeding · forced proximity
All books in this series ❯
Alien Tigers
by Tanya Jolie
3.00 · 3 ratings
psychics · science fiction · aliens · military · length-novella · futuristic · demons · witches · angels · shapeshifters
All books in this series ❯
Aliens on Earth
by Ashlyn Hawkes
3.00 · 5 ratings
aliens · science fiction · length-novella · monsters · non-human-hero · length-short · urban fantasy
All books in this series ❯