right now I can only think of mo dao zu shi but I bet there are many (it's more like shounen sorry)
Cat x dog personalities. http://www.mangago.me/read-manga/pochi_to_tama/
may something like
http://www.mangago.me/read-manga/10_dance/
http://www.mangago.me/read-manga/usagi_otoko_tora_otoko/
http://www.mangago.me/read-manga/50_x_50/
http://www.mangago.me/read-manga/yatteraneeze/
http://www.mangago.me/read-manga/koicha_no_osahou_tea_for_two/
https://tapas.io/episode/1278763
Yaoi with polar opposite mcs?