Last one is in San Francisco, so maybe you could make a trip if you actually want to go in a store and see the fish? I don't know of any closer to you though, sorry.
I haven't bought any fish from any of these sites yet but they've been highly recommended to me, so I figured I'd put them out there.
The ones I am eventually planning on ordering/buying from are Kansas City Discus, mostly because I can go see their stock in person, but they also seem to have some of the best.