Go to the AKC web page and look for Yorkie Breeders in MO. Call all that you can. Most of them do have a waiting list so be prepared. They will let you know what they are asking in the event they do have available puppies. From the time I started looking for a Yorkie from someone who shows them to the time I finally got one was a year. Well worth the wait. Just make sure you do go to the home to see how the dogs live and how many they may have. They usually don't let the puppies go until they have them spayed and neutered which is wonderful! Good luck in your search.