As someone from Hong Kong, I'd recommend Beef Chow Fun if you like Pad See Ew.
It's different twists on the same thing, it's all good. It's basically a big thing of carbs and fat. The Hong Kong version is more about searing everything and making it taste smoky and whatnot, and less about the sauce (I think the Thai version would focus a bit more on the sauce).
I'm getting old so can't do it very often. But when I do, man it's a treat.