What can I do to encourage my fussy dog to try raw food?

A slow transition is the best way forward for dogs who are fussy with what they'll eat. So, starting with small amounts of raw food in milder flavours like chicken turkey, and white fish can support a positive transition. Dogs are smell driven, so adding a small amount of bone broth to their raw meals in the initial stages of the transition will up the aroma, making their raw food very appealing. If your dog is consistently refusing a meal, consider a different flavour. Just like us, dogs can have taste preferences. 

Fussy dog guide - https://www.bellaandduke.com/dogs/expert-advice/dog-behaviour/dog-not-eating-10-methods-to-try/

Why dogs eat less in the summer guide.