In a small mixing bowl, whisk together mayonnaise, sour cream, lemon juice, parsley, dill, chives, and minced garlic until homogenous. Cover and refrigerate until service.
Prepare a standard breading station using three shallow containers: place flour in the first; beaten eggs in the second; and panko breadcrumbs mixed with garlic powder, smoked paprika, salt, and pepper in the third.
Pat chicken tenders dry with paper towels. Dredge each piece in flour and shake off excess, dip into the egg wash to coat entirely, and then press firmly into the seasoned panko breadcrumbs.
Heat vegetable oil in a large skillet over medium-high heat until it reaches 350°F (175°C).
Place chicken tenders into the hot oil in batches, ensuring the pan is not overcrowded. Fry for 3 to 4 minutes per side until the coating is golden brown and the internal temperature reaches 165°F (74°C).
Transfer the fried tenders to a wire rack set over a baking sheet to drain and maintain crispness.
Serve the warm chicken tenders immediately with the chilled creamy herb sauce.