---------//Full Gay
(The main characters have a legitimate relationship eventually.)
>The Administration series [Dystopia/ Bdsm/porn]
>Ai no Kusabi [Sci-fi/lots of porn]
>At Swim, Two Boys [Historical Fiction, Literary fiction]
>Brothers of the Wild North Sea [Historical Fiction/Vikings]
>Call Me By Your Name [Literary Fiction/Coming of age/some porn]
>Captive Prince [Fantasy/Politics/some porn]
>A Charm of Magpies series [Fantasy/Victorian/some porn]
>The Fall of Kings (Riverside Series) [Fantasy/lots of porn]
>Giovanni's Room [Literary Fiction]
>The God Eaters [Western/Fantasy/some porn]
>I'll Give You the Sun [Young Adult]
>A Land Fit For Heroes trilogy (Richard K Morgan) [Fantasy/some porn]
>The Last Herald Mage [Fantasy/Coming of age]
>The Last of the Wine [Historical Fiction]
>Maurice [Literary Fiction]
>Nightrunner [Political Drama/Pseudo Fantasy]
>No.6 [Dystopian Sci-Fi]
>Our Lady Of The Flowers [Literary/Modernist Fiction/some porn kinda]
>Raven Boys [Urban Fantasy/Supernatural/Mystery]
>A Single Man [Literary Fiction]
>A Son Called Gabriel [Literary Fiction]
>Song of Achillies [Historical/Fantasy/Greek Mythogoly]
>What Belongs to You [Literary Fiction]
>Wicked Gentlemen [Supernatural/Fantasy/Steampunk]
>The Blood Books (known as Blood Ties because of the tv show adaptation but iirc the tv cut the gay) [Urban Fantasy/Mystery] Main character bisexual vampire, his gay lover gets his own spin-off in the trilogy the Smoke Books
>Havemercy [Steampunk/Fantasy]
>Liquor series [Thriller]
>Exquisite Corpse [Horror]
>Aristotle and Dante Discover the Secrets of the Universe [Young Adult]

---------//Onesided Gay
(At least one main character is full homo for someone.)
>Broken Earth Trilogy [Scifantasy/Apocalyptic]
>Doctrine of Labyrinths (Melusine) [Fantasy/Depressing/some porn]
>Shattered Sigil (Whitefire Crossing) [Fantasy]
>Broken Earth Trilogy [Scifantasy/Apocalyptic]

---------//Heavy Subtext
(No relationship is admitted but man they pretty damn gay.)
>Anita Blake [Supernatural with Vamp/Lycanthrope myth/reverse harem/tons of straight porn+canon gay]
> (Robert McCammon) [Horror/Apocalypse/Cult shenanigans]
>Coldfire Trilogy [Fantasy]
>Good Omens [Supernatural/Humor]
>Merry Gentry [Supernatural with Farie Myth/reverse harem/tons of straight porn+canon gay]
>The Picture of Dorian Gray [Supernatural/Victorian]
>Robot Series by Asimov [robots probably]
>Vampire Chronicles (Anne Rice books) [gay vampires and shit]
>Brideshead Revisited [1920s-1940s Historical Fiction/Romance]
>A Separate Peace [WWII Era Historical Fiction/Naturalism]
>David Blaize [Edwardian Historical Fiction/Boarding School]
>Horatio Hornblower [Napoleonic/Historical Fiction]
>Great Expectations[Historical Fiction/1830's]
>David Copperfield[Historical Fiction/Mid-Victorian]
>Les Miserables [Historical Fiction/Mid-Victorian]
>Raffles (Series) [Historical Fiction/Late Victorian]

---------//Memoir
(Nonfiction memiors written by gay authors)
>Christopher and his Kind [1930s European Gays]
>I, Pierre Seele, Deported Homosexual [WWII Memior]

---------//Drama
(Works written for the stage featuring gay plots)
>Angels in America [History/Fantasy/AIDS Crisis]
>Bent [History]
>Gross Indecency [History/Oscar Wilde's Trial]
>The Normal Heart [History/AIDS Crisis]
>The Invention Of Love [History/Aestetic Movement]
>Edward II [Historical]