Just picking out PetSmarts grain free foods off the top of my head…
Innova Prime
Natures Recipe (only a few are grain free, but I don’t recall if any have chicken or not– I know one is salmon, though some brands use chicken meal to boost the protein content of their novelty foods)
Blue Buffalo (this makes up most of their grain free selection)
Pro Plan (just came out, and my store doesn’t have it yet, so I haven’t gotten to investigate. Probably has chicken, but should it do well, more proteins are likely to become available– something you might look into for future use should it rank well on DFA)
I really think that’s it, other than Authority, which is chicken, and Simply Nourish, which you already use. Royal Canin and Hill’s have some grain free foods, but those are just… Those are just no…
