1958 Plymouth Wheels and Tires Size Squared

[1958plymouthfury]

Hi guys, so what is considered the best option for the widest wheels and tires squared(all around front and back) that shouldnt rub that will fit the 1958 Plymouth,
7" or 8" wheels, 225/75R15, 235/75R15 tires?
Thanks

 

[MoparMike]

These are 235/75/15 on a 6" rim all the way around. 1957 dodge royal.