Charlemagne
Black Belt
And concerning the availability of grappling, if there was a bigger demand for grappling there would be more availability. Perhaps one of the reasons its less available than striking arts is that its demand isn't as high. If there were more people wanting to do grappling arts it makes sense more schools would open up that teach it.
That's exactly what people said in Southern California about 15 years ago. So Cal is pretty much the center of the Jiu-Jitsu universe these days. Since then, Gracie Barra has opened up about 35 schools in that same area, and every one of them is full. Grappling will peak at some point, but I don't think we are there yet.