Which z390 motherboard to buy

I'm gonna buy a 9700k and run it at 5.1ghz for 3 years. Along with 4x16gb DDR4-3600. One m.2, two video card, 6 USB3, and one GbE. That's it. Don't really need any other features on the motherboard. So what's the cheap bare bones motherboard with good 12 phase power and good audio?

gigabyte master

I went with the Asus Maximus XI Code. A couple months in with it now and happy with overall performance. Btw, I went with the 8700k due to a sale on it.