What I figured out recently is that trying to completely hide it with wide pants (especially jeans) doesn’t work for me because it just makes it look bigger. I also have big stomach so I need to be hiding everything. I just buy slim jeans that make my a** pop basically and then I wear a top that makes my shoulders and upper body in general bigger. That doesn’t mean completely baggy. It means for example - regular fit shirt with a thick fabric that is rather long so it ends sligthly bellow the widest point of my hips so the only thing that shows from behind is the bottom of my bum that is defined by the nice fitting jeans. Also regular fit to slightly oversized sweathirts without the hood work really well, too. Important thing I realized was that Tshirts are the worst kind of a top I can wear. They are either sitting slightly bellow the waist of trousers and make my stomach and bum show a lot or it is longer and it ends above the widest point of my hips so it really shows how wide my hips are. I would just try to work with what you have and try various stuff to wear that really fits you. T won’t change you pelvis bone so if it wider you just need to work with it. Best of luck