I have been using these for ex corporate PC’s for a few years https://tier1online.com/
They have just re-launched their website (whatever that means) but of most importance is the 20% off discount code!
What draws my eye is a Xeon system, wont run Windows-11 so well priced to start and Ideal for a Linux KVM host, now 20% off.
I have one that I use to build and burn VM’s, 64Gb is not too shabby
Code to use is “GREEN20” at the checkout