Some have used 16” wheels from older trucks, somewhat newer Fords, and brand new trailer wheels. Some more searching on that should turn up plenty of info.
Personally I like 19.5 wheels with 8R19.5 tires, they’re tall and skinny like the original 7.50x17 but a tad taller, which is good. Down side is they’re becoming more difficult to find. Good side is ones from the 50’s and possibly 60’s usually have hubcap clips and our original hubcaps fit.
See blue GMC, red wheels, and white hubcaps here.
https://www.stovebolt.com/ubbthread.../re-homecoming-pictures.html#Post1310459
