Looking for recommendations for a mini pc server to start self hosting

With all this migration i’ve been inspired to start self hosting some services.

I am looking for a mini pc to ideally run linux and host a media server with radarr and sonarr, pihole and some other stuff as i start getting more into self hosting.

Any recommendations / experiences that you can give? Or some general guidelines on what i should look for or things to avoid.

Thank you!!