Amazon.com: MAXSUN Motherboard B550 Terminator Gaming M-ATX PC Motherboard AMD AM4 Zen 3, DDR4, PCIe 4.0, M.2, SATA 6Gb/s, USB 3.2 HDMI/VGA, Micro ATX AMD for Ryzen 5000 & 3000 Series Processors :
Biostar publishes list of 3rd Gen Ryzen-compatible motherboards and reveals "AMD Ryzen 3000 Desktop Ready" logo in the process - NotebookCheck.net News
Ryzen 3000: B350 and A320 mainboards are compatible too | PC Builder's Club