The type of harness does depend on your needs and the training your dog has had or will be getting. I did a little research on harnesses for dogs and found this web site to be very informative: http://heavy.com/pets/2016/06/top-best-dog-harnesses-harness-no-pull-easy-walk-gentle-leader-reviews/ (http://heavy.com/pets/2016/06/top-bes...) It shows 10 Dog Harnesses and includes videos.
The video for the Dexdog harness shows the owner on a bicycle and the dog on a leash. Please never do this it is very dangerous for people and the dog.