the vast majority of yaoi manga involves rape lol
Probably already these
http://www.mangago.zone/read-manga/caste_heaven/
http://www.mangago.zone/read-manga/sono_kuchibiru_ni_yoru_no_tsuyu/
http://www.mangago.zone/read-manga/kawaii_akuma/
Dark hot sad af
http://www.mangago.zone/read-manga/giglio/
http://www.mangago.zone/read-manga/sakura_gari/
Basically porn
http://www.mangago.zone/read-manga/koushuu_toilet_danshi_hajimete_no_aokan/
nanu-nana has a rape list:
http://www.mangago.zone/home/mangalist/46274/
Uh anyone know a yaoi manga about rape......