Started a live post to summarise all the RPi alternatives for Klipper that I've been working on. I will update this same post as I go along and add in data from
Présentation bottes Soubirac Klipper 3 - YouTube
90 Silk Scarves - Cinabre Paris
SecKit SK-Tank coreXY build pt 3 - Wiring and Klipper firmware on BTT Octopus - YouTube