Beer Braised Carnitas Tacos

Name: Beer Braised Carnitas Tacos
Ingredients: for the beer braised carnitas; 3-4 pounds boneless pork shoulder; 1 yellow onion (diced); 6 cloves garlic (sliced); 1 4 ounces can diced green chilies; 1 can beer; 1 1/2 cups chicken broth (homemade or low sodium); spices (cumin, coriander, paprika, ancho powder, chipotle powder, Mexican oregano); 1 bay leaf; 1 lime (zest & juice); grapeseed or canola oil; salt and pepper; for the pickled red onion; 1/4 red onion (thinly sliced); 1/2 cup rice vinegar; 1/4 cup water; 1 pinch salt; 1 pinch sugar