I have this running ubuntu

https://www.newegg.com/p/2SW-0012-00137

With 2Tb NVME installed. I just keep it in a closet, less than 5-7w power draw at idle, and powerful enough to other homeserver-y things.

Any used computer from the last 8 years you can find should do the job just fine. Pis are just fragile and a rite of passage using umbrel+pi is reflashing the OS when it loses power all while being afraid of losing your funds.