I would want to know where you see yourself in relation to dogs in the future before suggesting a school. There are great detection dog training schools, positive reinforcement only schools, "old school" schools, Electric collar "schools", etc.. It will probably be your biggest investment if not in the top two or three with regard to a dog training career. If you want to do this for a living then I would get as highly specialized as possible and work within a specific niche. An example of that might be detection. If you simply want to learn about dog training and dog behavior, try to find a well rounded educational experience that understands all methods of training and doesn't just sell a system. Just some thoughts.