My DD has had a lot of luck with ordering from Romwe, it's only online and due to the cheap prices I'm not sure about returns. DD is pretty good at figuring out her size. They also sell room accessories, she has a really cool moon lamp and twinkle lights.
We don't have a lot of great local options, but do have Platos closet, Aero, Target (been disappointed lately with them), H&M. We do shop in the Chicago area when we're there for hockey season.
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