OFCCCCC
Rainbow city
Little mushroom
Into the thrill
Breaking through the clouds 2: swallow the sea
https://www.mangago.zone/home/mangalist/2854425/ (Everything in here besides “Blaze out” and “the melancholic conman”)
https://www.mangago.zone/read-manga/no_moral/ (manhwa)
https://www.mangago.zone/read-manga/choose_your_heroes_carefully/ (manhwa)
https://www.mangago.zone/read-manga/the_affairs_of_the_other_world_depend_on_the_corporate_slave/ (manga)
https://www.mangago.zone/read-manga/love_history_caused_by_willful_negligence/ (manhwa; bullying, suicide, attempted sexual assault, non-con, dub-con, blackmail, kidnapping, confinement, ML is mentally ill [ASPD], violence)
https://www.novelupdates.com/series/ordinary-person-a/ (manhwa; guideverse)
https://www.mangago.zone/read-manga/between_us_now/ (manhwa; dickhead ML)
https://www.mangago.zone/read-manga/the_rogue_prince_is_secretly_an_omega/ (manhwa; omegaverse)
https://www.mangago.zone/read-manga/moonlight_kie/ (manhwa; violence, blackmail, hebephilia[attraction to children aged 11-14], non-con, dub-con, confinement, half-blood incest in side couple, ML is mentally ill [possibly a psychopath?])
https://www.mangago.zone/read-manga/thundercloud_rainstorm/ (manhwa; bullying, violence, non-con, dub-con, asshole ML)
https://www.mangago.zone/read-manga/secret_love_affair/ (manhwa)
https://www.mangago.zone/read-manga/the_moon_painting_alchemist/ (manhwa)
https://www.novelupdates.com/series/cherry-cake/ (manhwa; omegaverse)
https://www.novelupdates.com/series/antidote-2/ (manhwa; slavery, violence, sexual harassment from a side character towards the MC)
https://www.mangago.zone/read-manga/the_hero_wants_to_die/ (manhwa)
https://www.novelupdates.com/series/the-guides-condition/ (manhwa; guideverse)
https://www.mangago.zone/read-manga/the_hunter_s_gonna_lay_low/ (manhwa; guideverse)
https://www.mangago.zone/read-manga/kirawaremono_no_tenisha_wa_demodotta_isekai_de_dekiaisareru/ (manga; age gap - MC was 13 when he met the ML who was in his 20s)
https://www.mangago.zone/read-manga/scandalous_wedding/ (manhwa)
https://www.mangago.zone/read-manga/i_don_t_want_to_die_so_i_m_going_to_raise_a_hero/ (manga)
https://www.mangago.zone/read-manga/eighteen_s_bed/ (manhwa; bullying, violence, homophobia, internalized homophobia)
https://www.mangago.zone/read-manga/regas/ (manhwa)
https://www.mangago.zone/read-manga/turning/ (manhwa; omegaverse)
https://www.mangago.zone/read-manga/don_t_mess_with_the_puppy/ (manhwa; animal shape-shifters)
https://www.mangago.zone/read-manga/saha_gye_piya/ (manhwa)
https://www.mangago.zone/read-manga/is_there_a_love_at_first_sight_in_e_sport/ (manhua)
https://www.mangago.zone/read-manga/the_reader_and_protagonist_definitely_have_to_be_in_true_love/ (manhua)
https://www.mangago.zone/read-manga/sissy/ (manhua; bullying, violence, adultery - ML cheats on MC, non-con, dub-con, kidnapping, confinement, minor age gap, the ML is an ABSOLUTE DOGSHIT PERSON, LOWEST OF THE LOW SCUMBAG, ONLY read this if you can stomach a GARBAGE degenerate "person")
Alternatively, you can search through these tags for the novels and then check if the adaptations are available here (you need to create an account to access the chapters, though):
https://www.novelupdates.com/stag/adapted-to-manga/
https://www.novelupdates.com/stag/adapted-to-manhua/
https://www.novelupdates.com/stag/adapted-to-manhwa/
Any bl manga manhwa shouen ai , manhua anything
That's from bl novel adaptation
Please drop the name or link