There are a few things to consider when looking for dog training classes. First, decide whether you want group or private classes. Group classes are typically cheaper, but private classes offer more one-on-one attention. Second, consider the trainer's credentials and methods. Make sure the trainer is experienced and uses positive reinforcement techniques. Third, ask around for recommendations from friends, family, and your veterinarian. Once you've considered these factors, you should be able to find good dog training classes in your area.