it's not bl, but try this!!!https://www.mangago.me/read-manga/mystery_to_iunakare/https://www.mangago.me/read-manga/brutal_satsujin_kansatsukan_no_kokuhaku/ bachira
Ooo both of them are really good, didn't read the first one until now tho, thank you for the great reccomendation! :)
Reccomend me a manga/manhua/manhwa that you love, something not mainstream please and thank you!