ES Siren: Similar romance series

Kinsmen

by Ilona Andrews

4.17 · 124 ratings

space-opera · assassins · sci-fi · adult · magic · futuristic · action-adventure · fiction · female-mc · political-intrigue · paranormal · space · alpha-mc · audiobook · steamy · romance · urban-fantasy · drama · slow-burn · aliens

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Corsairs

by Ruby Dixon

4.04 · 140 ratings

dark · sci-fi · adult · fated-mates · outlaws · aliens · fiction · paranormal · multi-pov · space · alpha-mc · romance · kidnapping · book · steamy · slavery · action-adventure · humor · audiobook · friends-to-lovers

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Tornians

by M.K. Eidem

4.18 · 208 ratings

aliens · fiction · sci-fi · adult · paranormal · steamy · romance · warriors · space · book · royalty · alpha-mc · futuristic · audiobook · action-adventure · space-opera · children · new-adult · contemporary · alternate-universe

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Dark Planet Warriors

by Anna Carven

4.12 · 285 ratings

futuristic · action-adventure · aliens · fiction · sci-fi · adult · steamy · book · romance · paranormal · military · space · alpha-mc · space-opera · contemporary · audiobook · supernatural · warriors · female-mc · inter-galactic

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Aldebarian Alliance

by Dianne Duvall

4.37 · 89 ratings

romance · book · vampires · paranormal · audiobook · alpha-mc · female-mc · action-adventure · aliens · fiction · sci-fi · adult · space · humor · military · first-contact · steamy · urban-fantasy · suspense · contemporary

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Imperial

by M.K. Eidem

4.32 · 63 ratings

adult · space-opera · sci-fi · aliens · fiction · alpha-mc · audiobook · paranormal · book · other-world · romance · violent-conflict · military · action-adventure · war · futuristic · space · steamy · space-travel · humor

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The Mandrake Company

by Ruby Lionsdrake

4.01 · 123 ratings

romance · action-adventure · fiction · sci-fi · space-opera · adult · book · audiobook · futuristic · aliens · steamy · paranormal · space · military · humor · female-author · galactic-empire · soldiers · space-fleet · alpha-mc

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Cyborgs: More Than Machines

by Eve Langlais

4.00 · 118 ratings

romance · adult · military · sci-fi · aliens · fiction · action-adventure · cyborgs · genetic-engineering · paranormal · steamy · humor · futuristic · book · soldiers · space · suspense · cyberpunk · abuse · violent-conflict

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Galactic Conspiracies

by Rob Colton

4.00 · 41 ratings

futuristic · alpha-mc · space · paranormal · mlm · book · steamy · romance · adult · military · sci-fi · action-adventure · aliens · fiction · lgbtq · abuse · violent-conflict · insta-love · children · family

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Cyborg Sizzle

by Cynthia Sax

4.09 · 173 ratings

cyborgs · futuristic · aliens · fiction · sci-fi · adult · romance · book · paranormal · genetic-engineering · action-adventure · steamy · military · space · alpha-mc · fated-mates · dystopia · multi-pov · warriors · dark

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Claimings

by Lyn Gala

4.17 · 63 ratings

aliens · fiction · age-gap · lgbtq · adult · sci-fi · mlm · romance · steamy · book · audiobook · paranormal · action-adventure · slow-burn · military · violent-conflict · space · friends-to-lovers · futuristic · female-author

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Zodiac Cyborgs

by Mina Carter

3.97 · 48 ratings

fiction · adult · sci-fi · romance · book · cyborgs · paranormal · action-adventure · aliens · futuristic · military · steamy · alpha-mc · space · insta-love · space-opera · genetic-engineering · female-mc · psychics · polyamory

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Interstellar Service & Discipline

by Morgan Hawke

4.00 · 48 ratings

romance · book · steamy · mlm · paranormal · space · futuristic · fiction · aliens · sci-fi · adult · alpha-mc · lgbtq · action-adventure · dark · space-opera · military · sexual-assault · slavery · kidnapping

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Borderlands

by Susan Grant

3.77 · 34 ratings

book · adult · space · paranormal · sci-fi · space-opera · aliens · fiction · action-adventure · futuristic · romance · military · outlaws · steamy · gothic · alpha-mc · violent-conflict · children · enemies-to-lovers · female-mc

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Dark Space

by Lisa Henry

4.02 · 42 ratings

book · military · adult · violent-conflict · sci-fi · space-opera · aliens · fiction · action-adventure · futuristic · lgbtq · war · dystopia · space · angst · mlm · romance · dark · mystery · audiobook

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A World Beyond

by Michelle Howard

4.04 · 100 ratings

book · paranormal · aliens · fiction · adult · sci-fi · military · romance · action-adventure · steamy · alpha-mc · inter-galactic · shapeshifters · space · warriors · kidnapping · audiobook · suspense · futuristic · dark

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Delroi Connection

by Loribelle Hunt

3.69 · 48 ratings

adult · military · action-adventure · fiction · book · alpha-mc · sci-fi · paranormal · aliens · steamy · romance · futuristic · fated-mates · space-opera · space-travel · psychics · female-mc · other-world · space · soldiers

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Saving Caeorleia

by Alicia Nordwell

3.96 · 26 ratings

military · adult · dark · sci-fi · aliens · fiction · action-adventure · futuristic · lgbtq · dystopia · mlm · abuse · romance · book · steamy · violent-conflict · space-opera · war · family · space

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An Uncommon Whore

by Belinda McBride

3.79 · 34 ratings

futuristic · aliens · fiction · sci-fi · adult · romance · steamy · book · mlm · lgbtq · action-adventure · slavery · abuse · suspense · war · family · dark · space-opera · military · violent-conflict

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