Read Sakuraga Mei's work as well as these yaoi mangas; Tsuki no Hoero, Kyouryaku Syndrome, Kuroneko kareshi no asobikata, Tsume to Toge, Katekyo, Koitomo, and Houkago no Love Call.
Oops! It's Kouryaku Syndrome. Sorry!
http://www.mangago.zone/read-manga/chuuken_kunshu/
http://www.mangago.zone/read-manga/i_don_t_dislike_you/
http://www.mangago.zone/read-manga/king_prince/
http://www.mangago.zone/read-manga/u_don_t_know_me/
http://www.mangago.zone/read-manga/dekichatta_danshi/
http://www.mangago.zone/read-manga/michizure_policy/
Any yaoi where one of the guys in the relationship is really defiant.
And please no viewfinder, koisuru boukun, or junjou romantica