What dog fod should I choose?

I usually feed Blue Buffalo & their Wilderness formula for the 1 with skin issues though right now we are trying Timberwolf which they like a lot & it is as good as BB if not better. Wellness & Taste if the Wild are also very good foods. You have to try several different brands as 1 food doesn't work for all dogs. It may be too rich or dog doesn't like the taste or too much protein etc. Evo is a fairly rich food.