I use a Gigabyte AX370 Gaming 5 mainboard, runs like a charme. Only “problem” like i said above, RAM speed at the moment only stable at 2666 14-14-14-34 timings, i use G.Skill 2x16GB F4-3200C14D-32GTZ RAM. 2x8GB is the way to go at the moment for higher RAM speed, but that are the problems of early adopters. 
I use a beQuiet Silent Loop 280 watercooler, first time i use one for the cpu. I liked how silent my Fury X was in the summer compared to my older fan cooled gpu’s, so my thought was give it a try for the cpu too. For that cooler i had to order a adapter to fit for the AM4 socket directly by beQuiet. They delivered in a couple of days, for free. The Adapter arrived before the cpu/mainboard/cooler. 
I must leave for work now, have a nice day everyone.