Here’s something I’ve been trying lately on recommendation from a new friend.
Stand firmly, feet separated, rooting your big toes down while bringing your heels toward one another. Let your knees be loose, keeping the feet firm, heels drawing together, muscularly separate the butt cheeks.
While maintaining this posture – see what muscles are activated. I find my inner thighs firming up, the flesh over the insertion point of the glut max disappearing – effectively eliminating “saddle bags”, and the abdominal muscles drawn in.
If this is all it takes to reconfigure some body parts, I’m sold