For sure, not The Children's Place jeans/cords if it's for a girl. They worked out okay for my son.
I got some second-hand cords Oshkosh ones that fit great. I'm not sure how old they are though, and I don't have any new Oshkosh clothing.
My daughter has leggings from Gymboree, Carters, Kohls, Target, and Walmart and they all fit fine. It's jeans I have more problems with.