What kind of collars should you use to walk your dog.

This is why I do not use or recommend choke chains or pinch collars.

ABOUT CHOKE CHAIN COLLARS (Slip Collars) OR PINCH COLLARS.

In days gone by, the term choke chain was synonymous with obedience training. Recently, more trainers are going by the motto, "Use brains, not chains," meaning there are ways to train dogs that don't rely on brute strength or intimidation. Because these collars can hurt, the dog may become confused and identify the pain with something he or she sees when that pain is felt. Dogs have been known to resent or lash out at whatever is close when the collar is tightened (including the person holding the leash). Some owners
mistakenly use choke or pinch collars for dogs that lunge at others.
This can result in a dog becoming more reactive to the person or dog approaching.

What I recommend and use and why.

THE GENTLE LEADER HEAD COLLAR
If your dogs is a large dog and pulls alot or lunges at dogs or people on the street. There are various brands of head collars or halters. It is not a muzzle. You do not jerk or pull your dog, but simply hold on to the leash quietly and allow the Gentle Leader do the work:
1) It functions like a halter on a horse, where the head goes, the animal will follow. It's power steering.
2) The Gentle Leader is a natural method for canine communication. The strap around your dog's muzzle delivers a psychological message. In watching a group of dogs, you might see a higher ranking dog encircle the muzzle of another dog with her own mouth. Most dogs recognize the muzzle strap as an extension of your leadership. Most dogs settle into a more mellow attitude with minimal training.

THE EASY WALK HARNESS
If your dog likes to pull. Not a collar and not a traditional body harness, the Easy Walk is designed to keep your dog from pulling forward on the leash. Unlike any other no-pull harness on the market, there is a ring in the front of
the harness which prevents the dog from pulling. The dog will walk
into the harness and stop when tension is felt.