I don't know your preference, but if you want a fiction where the author is an adult who put his mind on research, I suggest the "Valora is Calling" . It's too complex, though
I'm not a writer. But if I were, the last thing I wrote would be litRPG. I don't hate it, but it's not for my age anymore. Even my son doesn't really like it
Yes, I'm tired of it. Sometimes their dependence on system stuff goes too far. I read a manhwa about a prodigy who can't do magic more...
I find most fiction with good rating are bowing to market. System, overpowered MC, regression, and same middle-schooler stuff I used to read years ago. I found a hidden gem, though. And most reader don't like it.