Gigabyte B550M K AM4 Micro-ATX Motherboard B550M K B&H Photo
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) :
ASRock AMD AM4 B550M Pro4 Motherboard | TeqFind
New HP Omen 30L GT13 AMD Chipset B550 Socket AM4 Motherboard DDR4 M47174-001 | eBay