Can anyone recommend me some yaoi/bl where the seme and uke are rivals, bc those are my fa...

Sounds interesting but sorry i can't help answers i'll just following here~

http://www.mangago.me/read-manga/koi_o_hitokuchi/

http://www.mangago.me/read-manga/hanakoi_tsurane/

Right now I can only think of Color recipe and Haru wo daite ita, sorry(≧∀≦)

http://www.mangago.me/read-manga/dakaretai_otoko_ichii_ni_odosarete_imasu/ this too ^_^ enjoy!