omg you should definitely get into bl, i recently discovered it months ago and COUNLDNT STOP reading them! I dont wanna see AOT end so im a little hesitant to watch the rest of season 4 :( ANYWAYS! heres some mangas i recommend:
(P.S some may have a dark concept/rape-plot trop, read at your own risk!)
19 days(shounen ai)
Silent lover(shounen ai)
Heesu from class 2(shounen ai)
Path to you(shounen ai)
At the end of the road(shounen ai)
Fools(shounen ai)
Sign(shounen ai)
Pearl boy(yaoi)
Painter of the night(yaoi)
Cherry blossoms after winter(yaoi)
Jazz for two(shounen ai)
Salad days webtoon(shounen ai)
(P.P.S it may not be your cup of tea so ask for more manga recomendations from me if you want different genres aside from bl!)
Beloved (Jaeliu)
On A Leash
Magan and Danai
A Silent Voice
Awajima Hyakkei
Clover by Otsu Hiyori
Juusan Yasou Kidan
Check out other works that were published, like Saturn Apartments, in the magazine Ikki by looking up Ikki on bakaupdates
https://www.mangaupdates.com/publishers.html?pubname=Ikki
I feel extremely depressed after aot's ending because of how bad the ending was (my opinion) so i would really like recommendations to try new things and move on ! It could be any genre really, i can say the only thing i don't like is childish like plot ? if that makes any sense.