I'm looking for a rubber plant for my bedroom, den and sunroom. They are supposed to be good for cleaning the air. I haven't found one yet. I checked Walmart and Lowes
Other places to try are Home Depot and Target. If the Grocery stores in your area has a greenery section they are likely to have them also.
I have a beauty that I purchased at Lowes two years ago, it has quadrupled in size. They have a nice selection of tropicals at the Lowes in Gastonia, I am sure they do elsewhere as well.