I NEED TO CRY YALL

Peak writing imo
https://www.mangago.zone/read-manga/sleeping_dead/

https://www.mangago.zone/read-manga/happy_birthday_1/
Make sure you read at least the first 5 chapters thoroughly bc it might get a little confusing
https://www.mangago.zone/read-manga/minority_1/
This one is longer so it is really easy to cry to

as someone who is also prone to tears (mind you many of these are bittersweet than just bitter), i found a couple shounen ai that i had marked under tear central (hatemate, boy meets maria, ao no flag, SMILE). For yaoi, here’s a long ass list:

https://www.mangago.zone/read-manga/namida_no_priceless/

https://www.mangago.zone/read-manga/tsuki_wa_michikake_kemono_no_koi/

https://www.mangago.zone/read-manga/dreaming_vampire/

https://www.mangago.zone/read-manga/life_senjou_no_bokura/

https://www.mangago.zone/read-manga/tamayura_yuki_ringo/

https://www.mangago.zone/read-manga/lonely_to_organdy/

https://www.mangago.zone/read-manga/nights_before_night/

https://www.mangago.zone/read-manga/shinigami_wa_korosenai/

https://www.mangago.zone/read-manga/twilight_1/

https://www.mangago.zone/read-manga/if_you_treat_me_nice_we_can_do_it/

Sangyang:the Wanderer.

I don't know if it'll make you cry but it's really good.
https://www.mangago.zone/read-manga/murderer_llewellyn_s_enchanting_dinner_invitation/