C.W.
take her to the store and let her pick it out. We went through several potties for both kids until I let them pick out their own. You can have her sit on it in the store (clothed of course) to see if she is comfortable. There was a princess one and a plain blue and white one that my daughter liked, but it was 5 yrs ago. My son liked the froggy potty from fisher price and the bjorn potty. Whatever you use, make sure you take the little pee insert out of the front that is there for boys.