My first experience was the Ready Player duology by Ernest Cline and the This Trilogy is Broken 4 book series by JP Valentine. I’ve also had many recommendations for Dungeon Crawler Carl by Matt Dinniman.
The Ready Player series was basically an ok story with a “hey, remember this thing from the 80’s‽” through-line. And while some of the jokes felt forced, the Valentine Series overall was a ton of fun and I couldn’t stop reading it.
What else have you really enjoyed? (This genre lends itself towards a couple of Bingo squares too. )
I've been getting into it too and have read a few! In no particular order:
spoiler
I'm still mad about the last cliffhangerTechnically not LitRPGs, but close and absolutely worth reading IMO: