What will you be hosting on? I started with a raspberry pi. It was important to me to host on something outside my main machine. I chose the pi because it would run linux, use very little electricity, and would remain out of the way.
Initially it was for pi-hole. Which is a network wide DNS filter used to block ads (with some exceptions like YT). That got me more interested in my own privacy. So, I added a searx instance to my pi. It’s an aggregate search engine that searches a bunch of search engines and won’t track me. Or at least I’m tracking myself.
I’ve never run a minecraft server on a pi but I have a friend who has. It was fine for up to about 4 people.
From there I actually built a rig specifically for hosting. It’s a little more stout than the pi. On it I run Proxmox (which I use to create linux containers for the other things I host). I do run a file share on it. It’s nice because it’s easy to run weekly backups so I don’t lose things. I also run a vpn, qbittorrent (for linux isos), jackett (indexes torrents), sonarr (used to… find movies I’m missing), jellyfin (to watch said movies anywhere in the house) and finally I do host a valheim server there for my friend’s and I.
Honestly I would at least start with a dedicated machine for it, maybe an old laptop, a pi, just anything cheap that if you screw up you can wipe and start over. From there: pi hole, seaex, retro game box maybe? There’s really a lot of things you can host. Find a need you have a Google a linux solution for it. There’s almost always one.