The key point to care about x570 chipset motherboards is the availability of PCIe gen 4 shot and greater overclocking power. However, they are more pricey than B450 but provide outstanding value for their cost. There are some types of x570 chipset, and we highly suggest you go for entry-level motherboards.
You could even stick with the mid-range, but considering ideal motherboards with a $200 chip is not better.