Game x rush
https://www.mangago.me/read-manga/game_x_rush/
Yoiko no kokoroe
https://www.mangago.me/read-manga/yoiko_no_kokoroe/
Questionable (it wasn’t marketed as a BL, so technically it is a bromance)
Shuuten unknown
https://www.mangago.me/read-manga/shuuten_unknown/
Sequel:
https://www.mangago.me/read-manga/shuuten_unknown_gaiden/
One I love rn is Killer Peter so I suggest that firdt
nanohara boys
nanohana*
Can someone recom a good bromance