The best type of dog training for both you and your dog depends on the outcomes you hope to achieve. If you want your dog to learn agility training, go to someone who specializes in those techniques. Regardless of whether you want your dog to learn basic behavior or competitive-level tricks, the majority of dog training is actually about training the owner how to communicate with their dog. Most professional dog trainers agree that a model of training based on positive reinforcement breeds a happy, healthy, well-adjusted dog. The alternative to positive reinforcement training is using force or aggression techniques like physical punishment or shock-collar training to get the dog to do (or not do) a behavior. While the dog may learn how to behave as you direct, it is also learning to communicate with force and aggression, and will in turn use those behaviors on other dogs (or people) that are smaller or weaker than it is. Before signing up with a dog trainer, meet with the trainer and ask for references. Watch the trainer interact with your dog, and make sure they treat your dog with patience and firm kindness. Ask them questions about their training methods:
Remember that training is an ongoing process. You will never be completely finished. It is important to keep working on obedience training throughout the life of your dog. People who learn a language at a young age but stop speaking that language may forget much of it as they grow older. The same goes for your dog: use it or lose it. Running through even the most basic tricks and commands will help them stay fresh in your dog's mind. Plus, it's a great way to spend time with your dog.