That depends on a lot of things like your budget, your theme if you're following any and your personal liking. I buy most of my stuff online so I don't know most of the traditional bricks and mortar furniture retailers. I know some nice online ones like Betterbathrooms and Bathstore and another site called http://www.bathroommyplacewithstyle.com/... I think online retailers are easy to contact and you can even compare the work across brands before selecting a designer.
A vanity seat, to sit next to the bathtub, across the corner..with a small table stand next to it.
What type of furnishing do you need in a bathroom?