How about My Life With You?
Try one of the ones on this list: http://www.mangago.zone/home/mangalist/92916/
Some are really popular well known ones but several have under 500 votes.
http://www.mangago.zone/read-manga/koi_mane/
http://www.mangago.zone/read-manga/gakkou_no_sensei/
http://www.mangago.zone/read-manga/oyasumi_love_darling/
http://www.mangago.zone/read-manga/koutetsu_no_baby_leaf/
http://www.mangago.zone/read-manga/darling_i_love_you/
http://www.mangago.zone/read-manga/sore_wa_yappari_koi_no_sei/
http://www.mangago.zone/read-manga/shinobu_kokoro_wa/
http://www.mangago.zone/read-manga/kids_log/
http://www.mangago.zone/read-manga/yuki_iro_machiboke/
http://www.mangago.zone/read-manga/lovers_only/
http://www.mangago.zone/read-manga/kitsune_no_tama_yobai/
http://www.mangago.zone/read-manga/oshiete_ookami_san/
http://www.mangago.zone/read-manga/tokyo_yabanjin/
http://www.mangago.zone/read-manga/yell/
http://www.mangago.zone/read-manga/momoiro_renai_jijou/
http://www.mangago.zone/read-manga/otokonoko_no_koto/
So heres the thing... i have been searching for a masterpiece yaoi underrated manga... for over a year... its a silly bet i made with my girl... she told me if i could find a yaoi for her that she hasnt read and the one that she actually likes... she would do anything i ask...