Walking your poop shooters....
Those work pretty well, we have used one on our boxer mix.
The best one is the nose collar, totally stopped his pulling. He still has full freedom to bark, pant and sniff...but the pressure down across his nose totally stops him from pulling. It works even when he meets other dogs or a rabbit jumps out of the bushes and he wants to chase it.
Top Paw® HOLT Walking Dog Collar | dog Training Collars, Leashes & Harnesses | PetSmart