Cut chicken breasts into strips and soak in buttermilk for 30 minutes.
In a bowl, mix flour, salt, pepper, garlic powder, and paprika.
Coat chicken strips with flour mixture, then dip into panko breadcrumbs.
Heat vegetable oil in a skillet over medium-high heat.
Fry chicken strips until golden brown and cooked through, about 5-6 minutes.
Remove and drain on paper towels.
Warm tortillas in a dry skillet for a few seconds on each side.
Spread ranch dressing on each tortilla, then top with lettuce, cheese, tomatoes, and crispy chicken.
Wrap tightly and serve immediately.