The width of the rim you use has more to do with the off-set of the rim, the back spacing of the rim.
Read here: The Ford Ranger/Bronco II Wheel Fitment Guide To Measuring Wheels
You can use longer studs or inset lugs and spacers if your rims have too much off-set, too deep.
This will give you clearance for turning lock to lock without rubbing, but they may stick out too far passed the edge of the fenders.
Judgement call on your part.
Diameter of tire is also a factor, read here: Ford Ranger / Bronco II Tire Fitment
This is the overall height of the tire you use, not related to rim size, but is related to fitment.
So if your current tires are 29" tall and the new tires are also 29" tall then you just have the back spacing to deal with
Also using the same overall tire diameter will keep speedometer accurate, taller or shorter tires will change speedometer and odometer readings