It is very simple, if your reactive and aggressive dog does not accept treats, a 'certified' treat based dog trainer or behaviourist can not help you and they will usually make your dog's behaviour worse.
I can help you and your dog with no treats, no words, no 'aversive techniques' and no abuse. I just become your dog's Mother Dog and then I teach you how to do the same. You can reach me at 250-465-1090. One phone call will give you hope when you have been told your puppy or dog is 'untreatable' and should be euthanized.
Cheers ✌️