Look no further than Antec HCG series or Seasonic FOCUS Plus series. I have the Seasonic FOCUS Plus 850W for my 1800X and 1080 Ti. They're both overclocked to the maximum, and I never have to think about having any sort of issue with my power supply. Both solid brands with what appears to be very good products. 10 year warranty with either one you end up going with. Used both in different builds for my friends with no problems.
AMD 1800X w/ Phanteks PH-TC14PE (3850MHz, 100MHz BCLK)
G.SKILL 3200MHz CL16 16GBx2 (3066MHz, 14-14-14-14-28-42-4-6-24-1T)
GIGABYTE GTX 1080 Ti Gaming OC (2038MHz, 5940MHz)
ASUS ROG Crosshair VI Hero (BIOS v6301)