Arch and Gentoo have IMO the best documentation ever and you learn a lot when you try using either of those distributions as you have to do everything from scratch starting from a minimal system. Since you’re saying you’re new to Linux though, I’d say you should start with something more user-friendly like Mint or Ubuntu (or even Manjaro if you want a rolling release distro) and stay away from Arch and Gentoo in the beginning.
Arch and Gentoo have IMO the best documentation ever and you learn a lot when you try using either of those distributions as you have to do everything from scratch starting from a minimal system. Since you’re saying you’re new to Linux though, I’d say you should start with something more user-friendly like Mint or Ubuntu (or even Manjaro if you want a rolling release distro) and stay away from Arch and Gentoo in the beginning.