Please recommend me a very good manga I don't care which genre yaoi/straight/supernatural/...

Mafia, yakuza or deliquent mls...
https://www.mangago.zone/home/album/159389/

https://www.mangago.zone/read-manga/namae_mo_shiranai_machiawase/
https://www.mangago.zone/read-manga/like_a_sugar/
https://www.mangago.zone/read-manga/bitter_like_light/ (spin off for the second couple in like a sugar)

https://www.mangago.zone/read-manga/homunculus/
https://www.mangago.zone/read-manga/utakata_no_uroko/
https://www.mangago.zone/read-manga/shimanami_tasogare/