I have an Asrock DESKMINI A300 with a Ryzen 5 3400g. I noticed that there is the newer Asrock DESKMINI X300 that supports Ryzen 4000 APUs and even looks better IMO. I
ASRock > DeskMini A300 Series
ASRock to Launch 1.9L Mini-PC Based on AMD Ryzen 4000 "Renoir" Desktop APUs | Hardware Times