Grilled Tequila Lime Fish Tacos

Name: Grilled Tequila Lime Fish Tacos
Ingredients: 1/2 cup red wine vinegar; 2 tablespoons sugar; 1 tablespoon kosher salt; 2 cups shredded red cabbage; 1 cup fresh cilantro leaves, chopped; 3 tablespoons tequila; 3 teaspoons ground cumin; 2 teaspoons minced garlic; Juice of 1 lime; Kosher salt and freshly cracked black pepper; Four 6- to 8-ounce boneless, skinless mahi mahi fillets (or other firm white fish); Oil, for cooking; Sixteen 6- to 7-inch soft flour tortillas; 1 cup Cilantro Lime Crema, recipe follows; 2 cups crumbled Cotija cheese; Hot sauce, for garnish, if desired; 2 limes, cut into wedges; 8 ounces sour cream; 1/4 cup milk; 2 tablespoons finely chopped cilantro; 1/2 teaspoon ground cumin; 2 limes, juiced