Callisto: Similar series
Mates of the Domini
by Talia Rhea
3.92 · 244 ratings
explicit-plentiful · science fiction · m-f · fated-mates · aliens · creative-anatomy · abduction · third-person-pov · dual-pov · multicultural · breeding · non-human-hero · height-difference · alpha male · length-long · sweet heroine · hurt-comfort · pregnancy · competent heroine · contemporary
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Matrix of Destiny
by Dara Joy
3.85 · 174 ratings
science fiction · shapeshifters · futuristic · contemporary · length-medium · humor · fantasy · witches · m-f · paranormal · magic · fated-mates · virgin heroine · aliens · alpha male · audiobook · explicit-plentiful · non-human-hero · arranged marriage · pregnancy
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Ruthless Warlords
by Alison Aimes
3.73 · 155 ratings
non-human-heroine · mafia · science fiction · fated-mates · omegaverse · paranormal · alpha male · m-f · audiobook · futuristic · aliens · third-person-pov · vengeance · non-human-hero · tortured heroine · possessive hero · praise-kink · suspense · gifted heroine · explicit-plentiful
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Dragon Lords of Valdier
by S.E. Smith
4.07 · 380 ratings
science fiction · aliens · futuristic · non-human-hero · shapeshifters · audiobook · dragon shifter · explicit-open-door · m-f · alpha male · length-novella · fated-mates · length-medium · strong heroine · independent heroine · possessive hero · erotica · magic · open-door · men in uniform
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Not Your Mama's Alien Romance
by Alisha Sunderland
3.85 · 55 ratings
shapeshifters · science fiction · paranormal · commander · strong heroine · m-f · non-human-heroine · fated-mates · aliens · dangerous heroine · werewolves · non-human-hero · explicit-plentiful · creative-anatomy · alpha male · futuristic · war · possessive hero · first-person-pov · tall-heroine
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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
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The Thresl Chronicles
by Amber Kell
3.78 · 70 ratings
length-novella · shapeshifters · m-m · futuristic · science fiction · queer · fated-mates · aliens · military · royalty · fantasy · paranormal · magic · alpha male · war · queer-awakening · friends to lovers · abuse
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Chosen by the Karal
by Harmony Raines
3.77 · 55 ratings
aliens · multicultural · science fiction · non-human-hero · futuristic · m-f · length-novella · curvy heroine · dystopian · length-short
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Immortal Essence
by RaShelle Workman
3.66 · 41 ratings
futuristic · aliens · contemporary · science fiction · length-novella · fantasy · urban fantasy · length-medium · paranormal · length-short · insta-love · dystopian
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Vaxxlian Mates
by Sue Mercury
4.02 · 48 ratings
length-novella · m-f · science fiction · paranormal · fantasy · aliens · futuristic · multicultural · non-human-hero · erotica · forced proximity · christmas · height-difference · marriage of convenience
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Elemental Dragons
by Scarlett Grove
4.25 · 28 ratings
futuristic · shapeshifters · psychics · science fiction · length-novella · angels · paranormal · fantasy · aliens · demons · military
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Diaspora Worlds
by Melisse Aires
3.41 · 32 ratings
science fiction · futuristic · aliens · harems · length-novella · length-short · forced proximity · bodyguard-hero · erotica · m-f · non-human-hero · open-door
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The Intergalactic Guide to Humans
by Skye MacKinnon
3.99 · 44 ratings
science fiction · length-novella · humor · aliens · multicultural · audiobook · non-human-hero · first-person-pov · possessive hero · cheerful heroine · anal sex · cold hero · human-trafficking · dual-pov · double-penetration · creative-anatomy · abduction · sweet heroine · m-f-m · childfree-couple
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Starwalkers
by Julia Crane
4.35 · 20 ratings
aliens · science fiction · length-novella · futuristic · young adult · military · magic · dystopian · contemporary · legends & fairy tales · urban fantasy
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Celestial Angels
by Rosette Lex
3.29 · 21 ratings
science fiction · length-novella · futuristic · aliens · fantasy · dystopian · cruel hero · paranormal
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At The Alien Hotel
by Kate Sinner
4.42 · 12 ratings
science fiction · aliens · humor · explicit-open-door · non-human-hero · m-f · length-novella · dual-pov · futuristic · possessive hero · forbidden love · abduction · forced proximity · creative-anatomy · from hate to love · found-family
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The Jekh Saga
by H.E. Trent
4.36 · 14 ratings
length-medium · science fiction · aliens · futuristic · age difference · explicit-plentiful · from hate to love · poly · alpha male · mystery · pregnancy · reverse harem · other-man-woman · cruel hero · tortured heroine · love triangle · shy heroine · explicit-open-door · bisexual · angst
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Black Planet
by Belinda McBride
3.71 · 7 ratings
science fiction · length-novella · aliens · futuristic · paranormal · fantasy · multicultural · menage
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Alien Warrior Brides
by Taylor Neptune
3.66 · 16 ratings
futuristic · new adult · science fiction · aliens · military · humor · multicultural · length-novella · length-short · breeding · forced proximity · abduction · pregnancy · open-door
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Alien Tigers
by Tanya Jolie
3.00 · 3 ratings
psychics · science fiction · aliens · military · length-novella · futuristic · demons · witches · angels · shapeshifters
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