M.T.
Hi V.--
I successfully bred and showed standard poodles for many years and finished more than ten champions. It was interesting but very challenging.
My first piece of advice is to start with a really good dog and a really, REALLY good breeder. Your dog's breeder should be your best ally in showing your dog since she will want you to be successful. That means he or she should have a consistent record of successfully showing their own dogs. Just about everyone you will contact will say that they have show quality puppies, and, in fairness, believe that. Unfortunately, I've seen many "show quality" dogs who were definitely not. One place to start finding that breeder is at dog shows. I don't know whether you've chosen a breed, but, if you have, breed specialties are likely to have particularly good opportunities to see a larger number of competitors in your breed. One way to find shows in your area is through the AKC website. You can also use that website to find out who's winning.
It's important to remember that you, as a novice exhibitor, are not going to be the most attractive person with whom to place a really good potential show dog. No matter how good a dog may be, if it doesn't show up in the ring in great condition, well groomed, and well presented, it's not going to do much winning. Showing is expensive, time consuming, and frequently discouraging. Learning the skills of conditioning, grooming, and presentation takes time and patience. Most dog show newbies quit well before finishing their first dog. Paying more for a dog will not necessarily get you a better one. I also have reservations about buying a dog with a contract to show it. While you may think you want to show now, it may get really unpleasant for you after a while, and you should be able to back out. I did sell several people their first champions but, at the time I sold them their puppies, I was prepared to see the puppies never finished. I also provided a lot of support for the new exhibitors, and they followed my advice. Doing lots of research and being prepared to wait for the right breeder and the right dog is likely to be a really good investment of your time.
Good luck in your new venture.
M. T