Any yaoi with a possessive seme? But not the creepy kind, more like the seme in Mad Cinder...

Sorry not an answer but following

http://www.mangago.zone/read-manga/shitteru_yo/
http://www.mangago.zone/read-manga/otona_keikenchi/
http://www.mangago.zone/read-manga/dakaretai_otoko_ichii_ni_odosarete_imasu/
http://www.mangago.zone/read-manga/mujihi_na_otoko/

These are all my fav

Thanks but I've read them all TT

I remember Katekyo! had somewhat a possesive seme, this one (sorry the title is just too long) http://www.mangago.zone/read-manga/aruhi_hyouhenshita_shinyu_ni_kokuhakusa_remashita/ , this one too maybe http://www.mangago.zone/read-manga/natsume_kun_wa_nan_demo_shitteru/ , http://www.mangago.zone/read-manga/koi_o_hitokuchi/ , http://www.mangago.zone/read-manga/ouji_no_hakoniwa/ , and the last one may have a creepy possesive seme but that's up to you to decide http://www.mangago.zone/read-manga/yandere_hitotsu_yane_no_shita/
Hope that helped you a little

just following