Natural Dog Foods Review

Hello,
I am a college student And have 2 dogs. One is a min pin mix and the other is a bull terrier. The bull terrier has skin problems so I need a food that helps with her skin. She also is allergic to chicken. I am feeding them Kirkland lamb adult food right now but I was wondering if anyone knows a better kibble I can feed them. One that isn’t too expensive and okay ingredients. Any advice would help. Thanks!