All depends on what you're looking to host. For some perspective I run a valheim server, home assistant, jellyfin media server and a handful of other applications on a 2011 mac mini i7 8 core cpu with 2 ssds using sofware raid 1 on debian. I had the ssd's lying around and picked up the mac mini from a job site recycling a bunch of equipment but it's quiet efficient for my use case. I have an old 2 bay qnap connected to that "server" using NFS so that adds 6TB for my Jellyfin server to store media on.
All depends on what you're looking to host. For some perspective I run a valheim server, home assistant, jellyfin media server and a handful of other applications on a 2011 mac mini i7 8 core cpu with 2 ssds using sofware raid 1 on debian. I had the ssd's lying around and picked up the mac mini from a job site recycling a bunch of equipment but it's quiet efficient for my use case. I have an old 2 bay qnap connected to that "server" using NFS so that adds 6TB for my Jellyfin server to store media on.