
Just to get it straight in your mind are you thinking King charles (flat nosed, like a pekingese) or Cavalier King charles (which has a longer more standard type dog muzzle). The Cavaliers are very popular, and there are a lot of different Rescues, but if you mean King charles then you are right there are far fewer. I would make contact with a Breed Club, go and see some of the events they run. when you are ready ask for a breeders list, or you may have already made friends in the breed by then. If you make haste slowly you will know a lot more, and be more likely to make a good choice.