2 slices bacon, chopped
1 onion, chopped
3 tablespoons flour
1 pound Yukon Gold potatoes, peeled and chopped
6 cups reduced-sodium or homemade chicken broth
4 cups shredded cooked chicken (from a 2 1/2- to 3-lb. roasted chicken)
Kernels cut from 3 ears corn (about 3 cups)
1/4 to 1/2 cup heavy whipping cream
2 medium tomatoes, seeded and chopped
1 avocado, pitted, peeled, and chopped
1 cup loosely packed cilantro leaves
2 limes, cut into wedges
Freshly ground black pepper