I'm not a sensitive person so idrk if these r crying material but soft sad (maybe?)
https://www.mangago.me/read-manga/musebenake_junjou/
https://www.mangago.me/read-manga/fangs/
https://www.mangago.me/read-manga/isso_koe_ga_nakattara/
https://www.mangago.me/read-manga/back_to_school/
https://www.mangago.me/read-manga/back_to_school_all_grown_up/ (sequel)
https://www.mangago.me/read-manga/10_years_where_i_loved_you_the_most/ (maybe? Idk it wasn't that sad)
Idk what's upsetting to ppl but these seem sad (?)
https://www.mangago.me/read-manga/taishau_wotome_otogibanashi/
It's not anywhere near the level of sadness of "10 years where I loved you the most", and some scenes were actually quite cute, but there are some scenes where your heart will clench and throb and tears will start threatening to come out of your eyes. It's not BL, but it's pretty damn good for a shoujo manga (even though I'm not a big fan of should manga)
well if you're fine with heartbreaking BL then
https://www.mangago.me/read-manga/nigatsu_no_eden/
https://www.mangago.me/read-manga/paradise_view/
https://www.mangago.me/read-manga/hana_no_miyako_de/
https://www.mangago.me/read-manga/kono_koi_ni_mirai_wa_nai/
https://www.mangago.me/read-manga/life_senjou_no_bokura/
https://www.mangago.me/read-manga/birthday/
https://www.mangago.me/read-manga/lonely_to_organdy/
https://www.mangago.me/read-manga/boys_love/
if you really want to sob a whole night then:
https://www.mangago.me/read-manga/my_fiance_is_in_love_with_my_little_sister/
the novel is even worse.
It's not sad for me, but Lord, after reading the novel spoilers, I'm starting to think there's something wrong with the author. Like wtf did I just read!? I've never seen so many bad spoilers in my life.
Thank you guys for your recommendations!
Mangas that will make you cry