The best way to do that is to ask yourself the right questions:
Some people are just looking for companion, a friendly dog that will be around and does not need much exercise. Among the many dogs that match this profile are the English Bulldog, Basset Hound, Boston Terrier, Labrador and Bouvier.
However, if you have an active lifestyle and are looking for a dog that will keep up with you on a run, you should consider an Australian Cattle Dog, Australian Shepherd, Border Collie, Weimaraner, Ridge Back and even a Standard Poodle. Selecting the breed that works best for you is a very personal decision. The more research you do, whether online or chatting with pet owners at your local dog run, will allow you to make a better choice.