your local home centers have tons of all sorts of shelving products. From already made types to brackets to construct them and boards that they can cut for you so you can paint them to match. Perhaps a photo of the space with dimensions will bring out the very creative people with all sorts of ideas for you to consider.
Hobby Lobby has some very attractive ones. They are not expensive to begin with but often go on sale for half off. Also, Target and Walmart in the homegoods department.