01 - In a small bowl, whisk together the sour cream or Greek yogurt, mayonnaise, lime juice, hot sauce, and season with salt and pepper to taste. Set aside in the refrigerator to allow flavors to meld.
02 - Prepare three separate shallow bowls for dredging. In the first bowl, place the all-purpose flour. In the second bowl, beat the large eggs until thoroughly combined. In the third bowl, combine the panko breadcrumbs, smoked paprika, garlic powder, optional cayenne pepper, sea salt, and black pepper, mixing well.
03 - Working with one piece at a time, dredge each fish strip first in the flour, ensuring it's fully coated, then dip into the beaten egg, allowing excess to drip off. Finally, coat completely with the seasoned panko breadcrumbs, pressing gently to adhere.
04 - Heat 1/4 cup vegetable oil in a large nonstick skillet over medium-high heat. Once hot, carefully place coated fish strips in the skillet, avoiding overcrowding. Fry for 2 to 3 minutes per side, or until the fish is golden brown and cooked through. Transfer the fried fish to a plate lined with paper towels to drain excess oil.
05 - Gently warm the corn or flour tortillas individually in a dry skillet over medium heat for about 15-20 seconds per side, or in a microwave until they are soft and pliable.
06 - To assemble, place a few pieces of crispy fish onto each warmed tortilla. Top with shredded cabbage, diced tomatoes, thinly sliced red onion, optional sliced jalapeños, and fresh cilantro leaves. Drizzle generously with the prepared crema and serve immediately with lime wedges.