Best Buy: MSI B450 TOMAHAWK MAX (Socket AM4) USB-C Gen2 AMD Motherboard B450 TOMAHAWK MAX
Analyzing B450 for AMD Ryzen: A Quick Look at 25+ Motherboards
Amazon.com: ASUS ROG Strix B450-F Gaming II AMD AM4 (Ryzen 5000, 3rd Gen Ryzen ATX Gaming Motherboard (8+4 Power Stages, HDMI 2.0b/DP,2 x PCIe 3.0 x16, USB 3.2 Gen 2 Type-C, BIOS