Positive reinforcement training is often the simplest and humane way to handle too much barking. Humane anti-barking devices can be found in two versions or in a mix of each: Can be used both equally to repel aggressive dogs and also to keep the pets far from the backyard garden. https://pawpressnews.com/best-dog-deterrent-device-for-dogs-the-ultimate-solution-for-bark-control-and-training