@Kamile12 what types of stories and stuff are you interested in? Basically if you don't like horror... stories in general, movies, books and such it wouldn't make sense to recommend manga like that. Do you like fantasy? Romance? Comedy? Horror?
Most people seem to like humor so I'll offer a few that aren't to far in.
light hearted fun, I look forward to releases on this one
https://mangadex.org/title/21055/tondemo-skill-de-isekai-hourou-meshi
Funny, kind of a pre-romance, girl tries to prank a guy but always fails.
https://mangadex.org/title/53421/doujima-kun-wont-be-disturbed
Stupid but amusing oneshot
https://mangadex.org/title/10383/tackle-shoujo
Drama, but not too much:
brother taking care of step sisters, only 30 chapters long, pretty well written.
https://mangadex.org/title/21257/ohayou-toka-oyasumi-toka brother taking care of step sisters
npc's in a game, longer oneshot
https://mangadex.org/title/59356/me-and-mr-dragon