To answer your question: Most of the named computer-systems should be compatible. But you need to know that the firmware on the mainboards is not very tolerant when it comes to other wifi-chips. To support wifi fully you need for sure a compatible card with for example Atheros and when you build them into most of the computer-systems will report back you have an "unsupported card inserted".

When you want therefore a complete freedom for your own choice the systems named would be reduced to:

x220 / x230
t440p

All of them are supported by Coreboot so far. Without a modified firmware (either Coreboot or something else) you would have problems with alternative wifi-cards inserted for sure. Without wifi all of them should nevertheless run!