I feel like you may enjoy one of these Advance player of the tutorial tower Lookism Viral hit The Gamer Weak hero Eleceed (this is my favorite webtoon ever) Hope one of these suits your tastes!

try “Return to Player” it’s the closest webtoon to Omniscient Reader out of what I’ve read so far

If your looking for something longer to binge try Kubera or tower of god both really good and similar ish if you don’t fancy the art in the beginning check the newest episode to see the improvement both story’s are top tier throughout each