the best thing to do is train your dog yourself when training your dog don't use treats because it doesn't work all the time
best thing to do is use a choker when walking your dog but make sure you have the choker on your left side so that when you use it,it won't really hurt them it will just scare them. One of my friends decided to use treats when she took her dog for a walk and when she tried to stop using the treats her dog wouldn't listen to her at all. Just tell them that they are good and maybe have a play toy with you. But don't try and train them all day do it for about 5 mins a day other wise the dog won't enjoy it . And also when trainging your dog make sure you always tell he/she they are good and make sure you play with them alot but as for other training like attack I would take them to a school
Cheetah