The RPi 400 seems pretty easy to get. I ordered 2 a couple of weeks ago and got them with no problem. It's any sort of regular RPi 4 board that's unobtainium,

The RPi 400 seems pretty easy to get. I ordered 2 a couple of weeks ago and got them with no problem. It's any sort of regular RPi 4 board that's unobtainium, except occasionally as a bundle with a ton of stuff you may or may not want/need.