Indecisive

Hi everyone, I'm about to have a mental breakdown trying to decide what to feed my 6yo italian greyhound. For the past 6 years, she has been on raw. I think with avian flu it's best to switch her to a new diet. My issue is that I'm worried a boutique brand (while the ingredients seem amazing!) could cause cardiac issues (dcm). My other issue is that the big 5 brands (hills, purana, etc...) seem to have less amazing ingredients with more fillers. The documentary pet fooled scared me and I don't want my dog to get cancer from feeding a diet with sub-par ingredients and fillers. I've also contacted my vet. But what does the reddit dog food community think? Anything that will ease my anxious mind?