The waist movements of the Dai people are obvious, and there are more hip movements in proud as a peacock.
Qiang people have a dance called Salang Maiden. You can search for potatoes and shake your hips.
Miao people also have dancers dancing their hips.
Dance is universal, so many dances of different nationalities will encounter the same movements. You can search the videos of these dances online to see if they are.