(Plot oriented BL)
Rainbow city
Little Mushroom
The foul
That's a bit vague. Genre? Trope?
Anything is fine
More famous and easier to understand since the fandom is huge or decently sized :
One Piece
Solo leveling
Kagurabachi
Assassination Classroom
Kill the hero
Shingeki no kyojin
Bluelock
Alice in borderland
Pigpen
More underground one :
Starving anonymous
Apocalypse no toride
Tomodachi game
Uchuu kyoudai
I need a manhwa/manga/manhua with male main character.