Recommended men's casual & business pants brand for large thighs?

Hello. I typically shop from Banana Republic but running out of options for pants and wanted to check if anyone knows a comfortable pants brand with large thighs. I used to do a lot of marathons and stuff since highschool that my thighs are relatively thick (not bodybuilder large, but 1.5x average size I guess) compared to average people, so I don't even bother trying any slim fits, but try to go for regular or flex pants. Wanted to check if anyone knows a brand specialized in flexible business casual pants or brand dedicated to pants or something (doesn't have to be large brand). I used to wear flexible Eddie Bauer pants as my fake business casual and in the past BR also had travel comfort pants kind of stuff, but can't find anymore. Thanks.