Amazon.com: ASUS Prime B450M-A II AMD AM4 (Ryzen 5000, 3rd/2nd/1st Gen Ryzen Micro ATX Motherboard (128GB DDR4, 4400 O.C.), NVMe, HDMI 2.0b/DVI/D-Sub, USB 3.2 Gen 2, BIOS Flashback, and Aura Sync) :
Ryzen 3000: B350 and A320 mainboards are compatible too | PC Builder's Club
ASUS PRIME A320M-K AMD Ryzen 3000 Desktop Ready AM4 HDMI VGA M.2 Motherboard 889349672068 | eBay
MSI A320M A PRO MAX BEST Entry Level AM4 Board - YouTube
AMD Ryzen 3 3200G msi A320M-A PRO MAX M.2 V2 8GB DDR4 RAM SSD Cheap Desktop - YouTube
Ryzen 3000 Support on A320 Chipset Motherboards Unlikely | eTeknix