Determine the factors that makes a good fit for the environment they are being brought into. Should the dog get along with children and other animals? Is the dog going to be alone for part of the day? If the dog is going to live in a small home with no yard, a smaller dog is the best answer.
Go to the shelter and view the dogs. Watch how they react when a person walk towards them. A dog should be friendly and not aggressive, especially if the home will have children. Decide which animal seems like the best choice, and visit them multiple times. The workers at the shelter can give insight on the personalities and traits of a particular animal.
Do not choose a dog quickly. They are a lifelong commitment. Once the dog is taken home, they are there long-term. If a dog does not seem suitable, wait and visit the shelter again until the perfect dog is found.
Once a dog is chosen, ask the shelter what the adoption fees are. There will be paperwork to fill out in order to take the dog home.Learn more about Dogs