>>18526982
Just depends on your budget. I also have thicker quads from the gym and I fit nicely into:
>Warehouse 1001xx 1953
>TCB 50s
>Wrangler 13MWZ
>Fullcount 0105 (pic related)

Most of those are jap made 501 repros with the exception of the Wranglers, so they will range in price from $180-300. Wranglers are the more budget pair with a slightly more slim cut, but they generally look really fucking good on dudes with athletic builds and their relative value is basically unmatched. If you want a pair of jap made 501 repros, the better value pair is the TCB 50s which are around $180 last time I checked. If you want the absolute widest and most comfortable out of all those, the Fullcount 0105 is the one. In my opinion, the absolute best looking, most well rounded cut are the Warehouse 1001xx 1953. They also make a pair of 1001xx that replicate a pair of 1947 repros, but the 1953 version is slightly more relaxed. Beside all of these, I've heard great things about the Left Field Smokestacks.