Since we have been working on being nicer when on walks, I have been using Fromm treats as Coco's "jackpot" reward--what she gets when she really nails the look command. In Feisty Fido (a training book for leash reactive dogs) they suggest using a treat that your dog can't refuse. We got these treats just in time for training; Coco LOVES them and gets super excited when she sees me reach for them.
They are a little big for training all the time, but perfect for getting her excited to train because she likes them so much. The very crunchy round treats are also perfect for us as go-to treats because they don't stink. (Bill hates smelly food/treats and will complain if they are too strong. No complaints with Fromm!)
Our local pet health store carries Fromm food but not these treats. We've been wanting to try them for a while now, and I'm so thrilled to know that I can order them on Chewy.com whenever I want.