check out https://distrowatch.com/
hundreds of distros there, unbiased reviews, download links, search engine, and distros that are flagged as "beginner-friendly" are where to start
Tbh, I actually wouldn't recommend Distrowatch. It gets overwhelming real fast.
It prioritizes "hype" distros over long-term stable distros. So it often recommends small distros with just 1-2 full-time devs over something like *buntu, where there's a whole company behind that distro.
I think, Distrowatch is a really good tool for an experienced user who wants to try something new, but it's not exactly a lot of help for someone who has no clue and just wants to try Linux for the first time.