What Is A Good Sub $300 Computer I Can Use For A Server?

I have a refurbished Lenovo Thinkcentre that I was running Truenas off of. Everything was working great, but it got hit with a power surge and after lots of trouble shooting it appears the motherboard is fried and I don't trust my ability to soder and fix it.

No now I need to upgrade my setup. Wondering what is a good sub $300 computer I can order that will run Jellyfin, Immich, and a few light services off of? With Truenas you seem to need two SSDs. One to boot and one to run apps, so it seems like a mini PC will not work.

I have a seperate HDD drive bay with a few hdd's in it full of shows and picture. Just need a PC to run my services.

I would prefer something I can order off Amazon or can be shipped quickly so I can get back up and running again.