Is there any good short story or long bl that is completed? I have read most of them but i...

this is good, but it's very focused on the plot so slow burn, adapted from novel (fantasy, reincarnation)
https://www.mangago.me/read-manga/stigmata_1/

i've seen mixed opinions, but i personally liked it (alternate world where people can't lie (but actually some people can))
https://www.mangago.me/read-manga/truth_or_dare/

pretty sad, deals with complex themes, romance isn't the central focus (young mc finds a diary that he can talk to old mc in the future with)
https://www.mangago.me/read-manga/boy_to_boy/

not explicitly bl, more light shounen ai (MC goes back in time multiple times to stop the disappearance of the ML, his best friend)
https://www.mangago.me/read-manga/a_second_goodbye_to_you/

btw stigmata isn't completed (novel is, but manhwa seems decently close to ending)

https://www.mangago.me/read-manga/muchuu_ni_naruu_yo/

https://www.mangago.me/read-manga/two_guys_at_the_vet_clinic/

https://www.mangago.me/read-manga/tonari_no_ren_kun_wa_chotto_kowai/

https://www.mangago.me/read-manga/toratsuki_kaicho_teawase_negaimasu/

https://www.mangago.me/read-manga/sankaku_twilight/

https://www.mangago.me/read-manga/koboreru_ambivalence/

https://www.mangago.me/read-manga/bait/

https://www.mangago.me/read-manga/kimi_wa_tomodachi_nago_nayuta/

https://www.mangago.me/read-manga/literature_boy/

https://www.mangago.me/read-manga/not_blossom/
Really recommend the last one

Personal favorites
https://www.mangago.me/home/mangalist/3934521/?filter=&page=1

Thank youuu

Thank youuuu