Noctua NH D15 VS cryorig r1 ultimate VS scythe mugen

[diablo2604]

Good day. I was looking at these 3 air coolers for my build and i was wondering which one would fit the build best and would not have any compatibility issues with ram or GPU. https://pcpartpicker.com/list/ssnvPs

 

[sadams04]

Those are all three top-tier coolers. Not sure you can go wrong with any of them. For that i7-8700k, and at a similar price range, consider a 240mm water cooler as well.