Give your fish tacos a twist by marinating the fish in soy sauce. Blend together soy sauce, lime juice, garlic, and a touch of chili powder in a food processor. Pour the marinade over the fish and let it sit for at least 15 minutes. Grill or pan-fry the fish until it's cooked through and flaky. Serve the fish in warm tortillas with your favorite toppings like shredded cabbage, avocado, and a drizzle of sriracha mayo.