Sneaker stores that carry Extra wide sneakers

Are there any stores around that have a decent selection of extra wide shoes available? I have been to Dicks and also shoe stores in both Wellington mall and Boca mall and they usually only have one kind to choose from and are usually uncomfortable. I'd prefer running shoes as I walk around 75-100 miles a week at work alone. If anyone has any leads even if it's out WPB I am open to going further away.