I use asrock boards and ryzen processors, never an issue and plenty powerful. Ryzen + asrock or any asus board really will get you ecc support. Id highly recommend using a supermicro/asrock motherboard in this build.

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Im using a AsRock Rack X470D4U board currently but I believe they have a x570 one now too

Only thing Id change is Id bump it up to 32gb ram, and for about $30 extra id use a ryzen 3600

https://www.amazon.com/2x16GB-DDR4-3200-PC4-25600-Memory-Workstation/dp/B08CFVW1HZ/ref=sr_1_4?dchild=1&keywords=32gb+unbuffered+ecc&qid=1621439052&s=electronics&sr=1-4

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https://www.amazon.com/AMD-Ryzen-3600-12-Thread-Processor/dp/B07STGGQ18/ref=sr_1_1?dchild=1&keywords=ryzen+3600&qid=1621439090&s=electronics&sr=1-1

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https://www.amazon.com/ASRock-Rack-X470D4U-Asrock-Motherboard/dp/B07PNFTPGB/ref=sr\_1\_1?dchild=1&keywords=asrock+x470&qid=1621439111&s=electronics&sr=1-1