I'm rocking a ryzen 5 2600x and run a Plex server off my machine. Honestly go with a 3600 or 3600x and get higher frequency ram (3600+ is the sweet spot for zen 3) and a more robust cooling system (think aio) for some basic OC. I'm pushing 4.8gz on all cores stable, running around 40 degrees Celsius...
Im looking at playing DH or Pally. I found DK pretty boring still, they just are super simple... I wasnt a fan of brew, especially with the stagger mech changes.
I guess ill wait till prepatch and see what im liking.