Something like faux or friend, eighteen's bed, edge of ambiguity.
U know manipulative and obsessive seme.
Oooo, I have some recs!!
Moonlight (alt name: Lunacy) (current favourite)
Dog and Bird
Form of Sympathy
Circle (Wang Zi Ying)(2nd couple)
The Flower of Aloshya (Not my favorite, but definitely fits the bill and it's pretty popular)
Creating a Hidden Ending (Shonen Ai and Dungeon Breaking, but honestly, peak)
Bro this one is short but ML is crazy and I can probably find more later
https://www.mangago.me/read-manga/raising_beta_winnow/
Any bl where mc doesn't fall easily and is actually very scared of ML initially???
https://www.mangago.me/read-manga/dead_man_switch/
I guess this one, I haven’t read it in a while but I think the mc is saved of the ML at the start. This one is an interesting read anyway xD
Manhwa where FL has trauma or is abused and story is about her healing journey. How she meets good people etc
https://www.mangago.me/read-manga/your_eternal_lies/ Maybe this counts …
Manhwa where female lead is genuinely scared of male lead and male lead is indeed scary. (Not the easily blushy female leads)
How about this one?
https://www.mangago.me/read-manga/how_to_survive_as_a_maid_in_a_horror_game/

Oblivious and nonchalant MC who has superpower or something. The other people wanna monopolize him but he doesn't give in to anyone. Can be BL or bromance.
https://www.mangago.me/read-manga/fujimi_no_meinichi/
I don’t know if it fits but it’s cute and the superhero guy lives his life on his own terms.