I live in Canada, and not all stores sell Fromms here, but I have found it at Rens Pet Store, and at Global Pet Foods. I don't know where you are located or if they carry it in your area, but a lot of people use PetFlow, a dog food delivery service. We pay $100 for a 33 lb bag. There are other 6 star foods, like Wellness, Blue Buffalo, Orijen, Taste of the Wild, and Acana. I am not familiar with these brands, but they are listed as a good quality dog food in the dog food ratings forum.
You just want to make sure the food you choose is rated a 4 star or better, has good quality ingredients, no chicken, grains or corn. It's sometimes trial and error to figure out which food and protein source your bully tolerates, and works for him.