looking for yaoi recommendation

http://www.mangago.zone/read-manga/hard_core_heart/

http://www.mangago.zone/read-manga/pet_keiyaku/
http://www.mangago.zone/read-manga/yoru_wa_tomodachi/
http://www.mangago.zone/read-manga/the_awaiting_flower/
http://www.mangago.zone/read-manga/yume_no_you_na_hanashi/
http://www.mangago.zone/read-manga/pick_up/
http://www.mangago.zone/read-manga/ikujinashi_no_spectator/mf/v01/c004/1/
http://www.mangago.zone/read-manga/dokuzetsu_no_s_na_ore_ga_jimi_riman_ni_kuwaresou_desu/
http://www.mangago.zone/read-manga/void_zariya_ranmaru/
http://www.mangago.zone/read-manga/do_do_do_s_kyuu_kareshi/

i don't know if these are all s&m but they are mostly bondage. and you can also use tags to search :)