Whisk together 1/3 cup olive oil, 3 tablespoons lime juice, minced garlic, ancho chili powder, ground cumin, ground coriander, cayenne, salt, and black pepper in a mixing bowl or liquid measuring cup.
Place the trimmed chicken thighs in a gallon-size resealable bag and pour the marinade over them. Add the chopped cilantro, press out excess air, and seal the bag.
Massage the bag so the marinade coats the chicken evenly, then refrigerate for at least 1 hour and up to 6 hours.
Preheat the oven to 425°F (220°C). Brush a rimmed 18x13-inch baking sheet with about 1 tablespoon olive oil.
Remove the chicken from the marinade and arrange the pieces on the prepared baking sheet, spaced evenly.
Roast the chicken in the preheated oven until the bottom is golden and crisp and the meat is cooked through, about 30 to 40 minutes depending on thickness.
Let the chicken rest for 2 minutes, then cut into small strips or cubes.
Warm the corn tortillas and fill with the roasted chicken and desired toppings such as shredded lettuce, cheese, tomatoes, avocado or guacamole, crema or sour cream, and hot sauce.