heavy themes, can get dark (aka mentions of child prostitution, abuse, incest, gang rape, etc)
http://www.mangago.zone/read-manga/itou_san_kuraka_sui/
http://www.mangago.zone/read-manga/yatamomo/
http://www.mangago.zone/read-manga/deichuu_no_hasu/
http://www.mangago.zone/read-manga/haru_ga_kita_kome_tasu/
in between i guess:
http://www.mangago.zone/read-manga/midara_na_hina_wa_haru_o_uru/
http://www.mangago.zone/read-manga/mods/
http://www.mangago.zone/read-manga/junjou_shounen/
^ omegaverse
lighter reading:
http://www.mangago.zone/read-manga/kabeana_money_hole/
http://www.mangago.zone/read-manga/boku_no_osekkai_darling/
http://www.mangago.zone/read-manga/hitotsu_shikanai_mono/
http://www.mangago.zone/read-manga/youchina_koi_o_dou_shiyou/
^omegaverse
Can anyone recommend any yaoi manga where the Uke is a prostitute or sell his body for a reason.