Shoes for chunky feet

So my baby has some fat feet. Fat everything but the feet are the focus currently. I looked into stride rite but her length is a 5 for them and the width is around a 6xw. Im a ftm so I'm not sure if its okay to have a shoe thats a whole size longer than it needs to be just because her feet are chunky.

Are there any chunky foot friendly brands?

I just want her feet to not be cramped 😭