Korean Chicken Tacos

Name: Korean Chicken Tacos
Ingredients: ½ cup gochujang; ⅓ cup plus 2 tablespoons soy sauce, divided; 6 tablespoons vegetable oil, divided; 5 tablespoons toasted sesame oil, divided; ¼ cup maple syrup or honey; 3 tablespoons hot chili oil or garlic chili sauce; 2 tablespoons rice wine vinegar; 1 (2-inch) knob ginger, grated; 4 garlic cloves, minced; 1 teaspoon salt; 1 teaspoon ground black pepper; Gochugaru (Korean red pepper flakes) to taste (optional); 3 pounds boneless, skinless chicken thighs; 6 (8-inch) flour tortillas; ½ teaspoon sesame seeds; 1 (14-ounce) jar kimchi, drained and roughly chopped; 3 scallions, thinly sliced on the bias