Tokyo Ghoul manga is amazing, not so much the anime though (it's kind of tragic). Banana Fish is emotionally exhausting so if you want to, you can read/watch that too. And if you haven't watched Death Note, then I recommend you do. You can watch AOT OVAs as well if you haven't.
I don't know if anything I said relates to what you're looking for but I hope it helped!
I know how you feel here's my manga that relaxed me from my husband dead
Cute
https://www.mangago.zone/read-manga/the_human_hating_demon_lord_has_no_mercy_for_little_girls/
Funny
https://www.mangago.zone/read-manga/just_friends/
Female lead
https://www.mangago.zone/read-manga/higeki_no_genkyou_tonaru_saikyou_gedou_rasubosu_joou_wa_tami_no_tame_ni_tsukushimasu/
https://www.mangago.zone/read-manga/degausser/
https://www.mangago.zone/read-manga/ajin/
https://www.mangago.zone/read-manga/psycho/
https://www.mangago.zone/read-manga/bungou_stray_dogs/
https://www.mangago.zone/read-manga/covertly_gloriously/
https://www.mangago.zone/read-manga/terror_man/
https://www.mangago.zone/read-manga/kemono_jihen/
https://www.mangago.zone/read-manga/immortal_hounds/
Oh you can also watch AOT Junior High to like comfort yourself
SAIKI K IS THE BEST COMFORT ANIME EVER
Banana fish?
(⊙…⊙ )
They said pain I heard banana fish #－.－)
Thank you all for the suggestion (づ￣ ³￣)づ, but I can't read or watch banana fish since it's too triggering for me
I finished reading and watching aot, just caught up with Tokyo revengers, finished reading chainsaw man, and still reading jjk (since I don't want to see the panel where my precious Nanami is gone). They said reading this will makes me need therapy and since I want to make myself in pain recommend more of this kind of manga