Cherrybrook is a dead zone. No official fs shops anywhere near there. Castle Hill has a variety of massage shops as does Carlingford, Epping and Pennant Hills. There's a massage shop in Dural which is pricey. Otherwise Seven Hills, Rydalmere and Hornsby are your closest fs shops, or Gladesville would probably be just as quick to get to as Rydalmere.
It's not the best pickings out this way..