ASRock's cheap chipset-less Thin Mini-ITX motherboard with AM4 - HWCooling.net
AM4 CPU list, specs, and socket features | LEVVVEL
Amazon.com: Micro Center AMD Ryzen 5 5600X Desktop Processor 6-core 12-Thread Up to 4.6GHz Unlocked with Wraith Stealth Cooler Bundle with MSI B550-A PRO AM4 DDR4 ATX Motherboard PCIe 4.0 M.2 USB