Keys to Love: Similar series
The Will Darling Adventures
by K.J. Charles
4.34 · 354 ratings
third-person-pov · 20th century · class difference · united-kingdom · mystery · europe · super rich hero · historical · m-m · british-isles · england · fighters · queer · tortured hero · male-pov · angst · working class hero · secret-relationship · graphic-violence · bisexual
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Killing Eve
by Luke Jennings
3.69 · 107 ratings
mystery · suspense · contemporary · dark · queer · from hate to love · f-f · neurodivergent · horror · length-short · military · suicide · mafia · outlaw-heroine · russia · death · first-person-pov · heroine sleuth · length-medium · explicit-open-door
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Sentinel Security
by Anna Hackett
4.36 · 214 ratings
contemporary · military · super rich hero · m-f · forced proximity · suspense · explicit-open-door · mystery · alpha male · friends to lovers · strong heroine · length-short · length-medium · insta-love · office · sweet heroine · sassy heroine · from hate to love · siblings-bff · age difference
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Agents Irish and Whiskey
by Layla Reyne
4.03 · 112 ratings
mystery · queer · m-m · contemporary · age difference · suspense · explicit-open-door · length-short · third-person-pov · male-pov · friends to lovers · hurt-comfort · bisexual · angst · length-medium · military · men in uniform · usa · anal sex · dual-pov
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SEALS, Inc.
by Mia Dymond
4.03 · 95 ratings
military · contemporary · men in uniform · length-short · m-f · mystery · humor · bad boys · paranormal · fantasy · alpha male · length-novella · suspense · musicians · tattoos · mature couple · rockstars · strong heroine · possessive hero · betrayal
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Treasure Hunter Security
by Anna Hackett
4.07 · 101 ratings
contemporary · suspense · competent heroine · military · m-f · dual-pov · third-person-pov · forced proximity · mystery · paranormal · explicit-open-door · strong heroine · independent heroine · alpha male · men in uniform · bodyguard-hero · survival · tortured hero · abduction · length-short
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The Battling McGuire Boys
by Cynthia Eden
4.02 · 66 ratings
suspense · length-short · contemporary · mystery · military · western · strong heroine · historical · cruel hero · sweet heroine · virgin heroine · erotica
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Walker Security: Lucifer's Trilogy
by Lisa Renee Jones
4.31 · 54 ratings
contemporary · suspense · length-short · mystery · from hate to love · second chances · alpha male · angst · new adult · military · forced proximity · explicit-open-door · dark · length-novella · erotica · m-f · historical · dual-pov
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San Antonio Security
by Janie Crouch
4.58 · 69 ratings
suspense · military · mystery · contemporary · length-short · multicultural · dark · friends to lovers · mafia · forced proximity · pregnancy · alpha male · black-mc · rich heroine · buddhist
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All Fired Up
by Taylor Lee
3.91 · 35 ratings
mystery · contemporary · suspense · men in uniform · length-short · alpha male · military · length-novella · length-medium · length-long · cruel hero
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Bad Boy Ranch
by Em Petrova
4.76 · 34 ratings
length-short · military · western · war · mystery · suspense · humor · erotica · contemporary · dark
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The Devil's Dires
by Ellis Leigh
4.25 · 31 ratings
shapeshifters · fantasy · paranormal · military · length-short · suspense · mystery · urban fantasy · non-human-hero · insta-love · erotica · contemporary · length-novella · werewolves · strong heroine
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Cyborg Force
by Cara Bristol
4.50 · 18 ratings
length-short · science fiction · from hate to love · military · forced proximity · mystery · suspense · fantasy · futuristic · aliens · betrayal · mature couple · paranormal · insta-love · alpha male
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Cowboy State Lawmen
by Juno Rushdan
4.24 · 21 ratings
mystery · suspense · contemporary · multicultural · military · length-short · western · christmas · clean · cowboys · length-medium
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Cowboys of Silver Spur Security
by Delta James
4.42 · 12 ratings
western · suspense · military · mystery · length-short · length-novella · survival · abduction · bdsm
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Bone Frog Bachelor
by Sharon Hamilton
4.60 · 10 ratings
suspense · length-short · military · mystery · contemporary · super rich hero · age difference · abduction · anthologies · arranged marriage
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South Beach Security: K-9 Division
by Caridad Piñeiro
4.33 · 9 ratings
mystery · suspense · length-short · military · found-family · dark · m-f · forced proximity · multicultural · from hate to love
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Seduction
by Emma Calin
4.20 · 5 ratings
suspense · contemporary · mystery · military · length-short · length-novella · erotica · anthologies · humor · heroine sleuth
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