Oo Omniscient Reader is good! Its about a dude who gets transported into his favorite web novel. There is also The Gamer (webtoon, dk if its on here), about a dude magically gets powers like a video game character.
1. The beginning after the end — my personal favorite(after Solo Levelling)
2. Tomb Raider King — read it a while ago&now I'm waiting for more chapters
3. Kill the Hero — I've heard is quite similar, but I haven't read any chapters bc I've been waiting for more updates
The begining after the end is really good, I would also reccomend it.
camping here
you can use this person's list http://www.mangago.me/home/mangalist/626481
she has other lists too
im just looking for manga like solo leveling any recommendations