For new users shit like mint and ubuntu are really good do to the OS itself being pre packaged, and having a large community. However once you become accustomed to linux enough i recommend most people move to one of the big three distros to get more familiar with how a linux system works.

Archlinux is great for this because it will literally walk you through every step from creating install media, to manually partitioning, to configuring the bootloader, to installing the system, to installing a DE/WM etc.

anyway, the big three i recommend are debian, arch, and gentoo, although it's worth noting that gentoo is the try hard OS, and it's arch on steroids. Still a neat OS, and a rather useful learning experience though.

Debian is super trivial to pick up, arch is less so, but i already talked about it.