I like you am coming from a RPi4 and was running into issues. Amazon currently has a NUC-sized AMD Ryzen5 3550H-based mini PC for sale for $239. It has 16GB of ram with a 128GB m2 SSD. I am using that along with a 1TB SSD. Its been working extremely well for me running Geth + Prysm. https://www.amazon.com/dp/B09R4M686F?psc=1&ref=ppx\_yo2ov\_dt\_b\_product\_details