currently those are the only Desktop motherboard Libreboot supports
"There are a lot of parameters. Price, performance, free software, libreboot,
coreboot, eufi, intel, amd."
Price:
the Desktop motherboards i listed are quite expensive
(cost me about £100 second hand including postage from the US to the UK) and
after that you need to find cpu, RAM, case etc
so a cheaper option may be just to use a Libreboot compatible laptop like the
ThinkPad X60 or Chromebook c201 and then connect them to a monitor to get a
full screen.
the Thinkpad X60 also has a dock you can use to get more USB ports, more
HardDrives and a DVD drive
you can also buy higher power libreboot laptops from
MiniFree
Performance:
you should have no problems with performance on those Desktop machines but
those laptops i recommended are quite low power you can get higher power ones
Here
intel, amd:
you don’t have to chose between intel or amd the Chromebook c201 uses ARM
if you tell me specific what you would be using it for? (internet browsing,
gaming, video editing etc etc)
i could recommend a specific model of computer