**Marinate the Chicken**: In a large bowl, combine 1 ½ cups buttermilk, 3 eggs, paprika, garlic powder, salt, and black pepper. Add the chicken strips, ensuring they are fully submerged in the buttermilk mixture. Cover for minimum of 20-30 minutes, or overnight.
**Prepare the Coating**: In one shallow bowl, mix flour with additional salt and pepper to taste.
**Coat the Chicken**: Remove the chicken from the marinade, shaking off any excess. Dredge each strip in the flour.
**Fry the Chicken**: Heat oil in a large skillet over medium-high heat. Fry the chicken strips in batches for 3-4 minutes per side, or until golden brown and cooked through. Transfer to a paper towel-lined plate to drain.
**Make the Buttermilk Ranch**: In a medium bowl, whisk together ½ cup mayonnaise, ½ cup buttermilk, ½ cup sour cream, parsley, dill, chives, garlic powder, onion powder, and lemon juice. Season with salt and pepper to taste. Chill until ready to serve.
**Char the Tortillas**: Lightly char the tortillas on a hot skillet or grill for about 30 seconds per side.
**Assemble the Tacos**: Spread a generous amount of buttermilk ranch on each tortilla. Add 1-2 chicken tenders and top with shredded lettuce, diced tomatoes, cucumbers, and red onions. Drizzle with extra ranch if desired.