[Project] [Help] What's a good OS for a home server?

I'm putting together a bunch of my old PC parts to get a home server going, and i was wondering what the best OS would be. I have Mint installed on it currently, but I'm not sure thats the best option so I'm looking for alternatives.

I'm definitely a Linux novice, so I dont want anything super complicated. I was thinking of using Debian since it seems decent, but I really know nothing about the different distros and would appreciate a good starting point if anything