There was/is a rhizo at a store in my state I saw advertised recently but can't justify the price, don't really have room for it anyways but that's the first I've seen available in several years.
Aqua sd, cherry corals and the like probably have dendros often, sometimes see places selling balanos as "pink dendros" too. I can't hardly give them away where I live, a real lack of reefers in general and even less interested in nps.