In case anyone else is in this boat, the Moto Z is a pretty good third option. Not quite as pricey as the Pixel, (and the camera's not as amazing), but it's very close to stock Android.
Every now and then I toy with the idea of getting the latest iPhone. Another year of this old thing and I might get fed up enough to switch.
With no love for apple, I recommend (from personal experience) buying an iPhone SE.
Edit: I mention the SE specifically because it is not the same price. $400 vs $750