Not much will be manga, but these are my personal favs~
https://www.mangago.zone/read-manga/hayaku_shitai_futari/
https://www.mangago.zone/read-manga/hige_to_suzu_to_shabondama/
https://www.mangago.zone/read-manga/im_the_main_character_of_a_harem_manga_but_im_gay_so_every_day_is_hell_for_me/
https://www.mangago.zone/read-manga/paljae/
https://www.mangago.zone/read-manga/at_the_northern_fort/
https://www.mangago.zone/read-manga/debut_or_die/
https://www.mangago.zone/read-manga/yamada_to_kase_san/
https://www.mangago.zone/read-manga/dreadful_night/
https://www.mangago.zone/read-manga/rinko_chan_to_himosugara/
https://www.mangago.zone/read-manga/kumicho_musume_to_sewagakari/
https://www.mangago.zone/read-manga/dam_of_the_forest/
https://www.mangago.zone/read-manga/i_can_see_your_stats/
https://www.mangago.zone/read-manga/to_you_the_immortal/
https://www.mangago.zone/read-manga/honto_yajuu/
Make sure to look at the trigger warnings for these, ^^
Monster (psychological investigative story, urasawa is an amazing storyteller)
Liar game (psychological money game, u must be adept in manipulation and deception to win!)
Assassination classroom (octopus teaches the misfit class who want to kill him lmao)
Sakamoto days (u might know this one already)
The witch and the beast (a "girl" and a guy travel around in a magical European-esque setting, meeting witches)
Dear gene (very well-written bl manga)
Dungeon meshi (the best dungeon story in manga imo; involves cooking)
Ajin (dark and super suspenseful with psychopath mc and villain)
Recommend your best manga