For 12600K, the MSI Pro-A is a good enough.

The ASUS ROG STRIX Z790-A Gaming WiFi is my top pick if budget isn't a major concern. Excellent build quality, great power delivery for overclocking, WiFi 6E, and that classic ROG aesthetic. Yes, it's pricier than some alternatives but worth it for the feature set.

I've been using the ASUS TUF Gaming Z690-Plus WiFi D4 with my 12600K, and it's been great. It has good VRMs for overclocking, WiFi 6, and supports DDR4 RAM if you want to reuse your existing memory. Plus, the BIOS is user-friendly. Definitely worth considering!