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. )
Listening to He Who Fights With Monsters rn and enjoying it. Started out slow, but once the ensemble characters get introduced it picks up.
I enjoyed Trash of the Count’s Family (licensed in English as Lout of Count’s Family by Seven Seas) until it got too repititve and drawn out for me (which tbf was smtg like 600 chapters in) though that one’s lighter on the game interface aspect (ie you’re not getting stats and ability blocks). The found family focus is nice.
So I’m a Spider, So What? is really heavy on the game interface, but the weirdness of the premise (what it says on the tin here) and the quirkiness of the protag with a sort of deuteragonist who handles the more serious side of the story until it all comes together was good.
There’s also an whole “girls’ genre” focused on visual novel games that’s pretty popular (haven’t read/watched it, but My Next Life As A Villainess I think is the most popular). Heads up though these ones are usually around having to build relationship and romance meters if you’re just looking to stick to power leveling “boys’ genre” stuff (which no shade both are fun!). Villains Are Destined to Die is a pretty good one I’ve read for the genre, but severely depressing (there’s a bigger story, but most of it is about “I’m stuck in a game world that forces me to deal with an abusive family and it’s making me suicidal”). Probably more happy girls’ genre ones, but I can’t think of any that have an official English translation/are default English off the top of my head haha.
If you wanna dive into the genre I think most important decision is what amount of gamifying you want to read about it cause it extends from “character woke up in/is playing a game and it’s rarely if ever mentioned this is a game world again” to “every other page you have massive game statblocks dumped on you and are supposed to remember entire stat systems, skill trees, etc”.