Proto you're back!
Canidae used to be part of Strider's rotation but after the change he always had giant stools and a lot of undigested starchy stuff in it. We rotated it out and now he pretty much gets the TOTW wildfowl rotated with TOTW venison and bison along with home cooked/raw. We tried wellness core and he lost a lot of weight and started blowing coat so we stopped after the one bag.
Doberluv, the Petcos and Petsmarts around here have been carrying brands like Solid Gold, Avoderm, and Natural Balance. Not the best value for the money, but overall they are better than Nutro. I think they carry blue buffalo too. Have you asked the feed store about special ordering any other brands?
I can't remember what size avoderm and natural balance kibbles are, but I think the Solid Gold kibbles are on the smaller side. Sometimes you can write to the companies and ask for free samples.