For your build, great quality 750W unit will do fine. Here you have 2 options: 1. If your build is white, go with Seasonic Snow Silent 750W,
specs: https://seasonic.com/product/snow-silent-750/
review:
http://www.tomshardware.com/reviews/seasonic-snow-silent-750w-power-supply,4200.html
2. But if your build is black, go with Seasonic PRIME 750 80+ Titanium,
specs: https://seasonic.com/product/prime-750-w-titanium/
review:
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=481
pcpp: https://pcpartpicker.com/products/compare/LgJkcf,NN648d/
PRIME series is the best that is offered by Seasonic and it's the only PSU series in the world that has 12 years! of warranty.
My Skylake build (full specs in my sig) is powered by Seasonic PRIME 650 80+ Titanium. Seasonic PSUs also power my Haswell and AMD builds.