I have a list of ones that have made me cry. Not all BL but there's some on there.
https://www.mangago.zone/home/mangalist/2628518/?filter=&page=1
https://www.mangago.zone/read-manga/devil_and_song/
From memory this one was pretty heartbreaking https://www.mangago.zone/read-manga/i_will_be_waiting_for_you_in_1999/
https://www.mangago.zone/read-manga/haruka_tooki_ie/
asterism isnt a bad endign but it was real heavy.. and i cried a lot
https://www.mangago.zone/read-manga/asterism_yaoi/
honestly i cant remember if path to you is.. that heartbreaking since i read it in the dead of night and that amplified my tears but here it is anyways!!
https://www.mangago.zone/read-manga/path_to_you/
also if youre open to reading some short novels
- 4:48
- waiting until 35 years old
- the final 100 days
(=・ω・=)
any heartbreaking bl manga? or a list of em?