Best cases and components for a quiet gaming build?

I'm looking to make a "media console" type build that will live under my tv. Main purpose will be playing games at 1080p@60fps

I had a build with a Ryzen 2600 and r9 390 in a Fractal Node 202 but it could get really loud. What's the best way to make a quiet gaming build? Would a higher end GPU that is under volted be best? Or just a mid range GPU at stock settings?