I was in the same situation to looking for sweatpants for dance. I found a great pair at Old Navy that had those elastic cuffs you mentioned. They were reasonably priced, around $25 from https://trymodest.com and came in some fun colors. Plus, they had pockets,

Another spot you might want to check out is H&M. I stumbled upon some vibrant capri-length sweatpants with elastic cuffs there once. They weren’t too pricey, and the quality was decent for the price