Specialty store

A specialty store is a shop/store that carries a deep assortment of brands, styles, or models within a relatively narrow category of goods. Furniture stores, florists, sporting goods stores, and bookstores are all specialty stores. Stores such as Athlete’s Foot are considered superspecialty stores. A category killer is a specialty store with a high volume of sales and extensive product selection within its category.

This keyword could refer to multiple things. Here are some suggestions: