4 dried guajillo chiles, stemmed and seeded
2 tablespoons achiote paste
6 large cloves garlic, peeled
1 (7 ounce) can chipotle peppers in adobo sauce, drained
1.333 cups finely chopped onion, divided
0.66 cup orange juice
3 tablespoons apple cider vinegar
3 tablespoons olive oil
1 tablespoon ground cumin
1 tablespoon light brown sugar
1 teaspoon kosher salt
3 pounds skinless, boneless chicken thighs, cut in half
8 (12-inch) jumbo wooden skewers
1 large fresh pineapple - peeled, cored, and sliced
20 (6 inch) corn tortillas
0.25 cup roughly chopped fresh cilantro