Hi Kelly-
DFA does not rate dog treats. Their current rating system would not fit for dog treats since they are meant for supplemental feeding and not a full diet.
I personally do not use treats in my house, so I can’t help much there, but I think most of the people on here use treats from the same company of food they buy or make their own.
Personally though, I find that petting, praise, exercise and love are what they prefer to treats. And then they live longer because they aren’t overweight! Its a win win for me.