I feed frozen raw ( from local company). That is the best but most inconvenient type for allergic dogs. I try to avoid chicken as a lot of bulldogs are allergic to it.
Before that I fed dehydrated raw turkey or beef ,Only Natural EasyRaw from PetSmart ( similar to Honest Kitchen or Grandma Lucy's ).
Before that I fed kibble, but my dog was always licking paws. Most popular kibbles here are the limited ingredient brands such as the Acana singles line, Zignature, or Earthborne Holistic limited ingredient. I liked duck Carna4 kibble, but that's mostly available in Canada where I live.