Coat both sides of the chicken breast evenly with the smoked paprika, Italian seasoning, salt, and pepper.
Heat the sun-dried tomato oil in a large saucepan over medium heat and sear the chicken breasts on both sides for 3 minutes until they have a good color.
Pour enough chicken broth into the saucepan to almost cover the chicken. Cover and braise for 30 minutes or until the check shreds with a fork.
Transfer the chicken to a large bowl and shred it with a hand mixer.
Dip
Preheat the oven to 375 degrees and lightly grease a cast-iron skillet.
Add the sour cream, cream cheese, spinach, sun-dried tomatoes, dry shallots, garlic powder, basil, Italian seasoning, smoked paprika, black pepper, and salt to the bowl with the chicken and mix until combined.
Fold the parmesan and mozzarella cheese into the mixture until combined.
Add the mixture to the prepared skillet and spread it out evenly. Then, top with any additional cheese if you like.
Bake the dip uncovered for 20 to 25 minutes until bubbly.
For more color, broil the dip for a few minutes until golden brown.