Bengal Needs to Lose Weight

My boy, as sweet and big as he is, needs to seek out a diet. Looking to this community for advice. Our vet doesn’t have experience with bengals so want to make sure any food changes still remain high in protein for the breed’s needs. My boy is a picky eater and doesn’t like a raw diet. He is 18.5lbs for reference.

He’s current been on Crave dry food and Blue buffalo wet food.

Picture for pet tax. Thanks in advance Bengal community!