55.2-59 Best tire size that looks good on 55-59 trucks. 15x7 rims

I bought a new set of rims ( 15x7 ) for my ‘58. Nothing special just better than what’s on it now. Chrome smoothies with moons. I’m getting new tires and wanted something like a 3” whitewall. My question is and pics would be nice, what’s the best tire size for this size rim that complements these trucks? The reason I went with this rim for now is I still have stock 6lug axles so I’m having to stick with this for now. Just want to get it on the road this summer. Thanks