In a large pot or Dutch oven, heat a splash of olive oil over medium heat. Add the chopped onion and sauté for about 5 minutes, or until it becomes translucent.
Stir in the minced garlic and cook for an additional minute until fragrant.
Add the diced chicken thighs to the pot, cooking until they are browned on all sides, about 5-7 minutes.
Pour in the salsa verde and mix well, followed by the black beans, corn, chicken broth, cumin, smoked paprika, chili powder, salt, and pepper. Stir everything together until combined.
Bring the mixture to a simmer and reduce the heat to low. Cover and let it cook for about 20-25 minutes, stirring occasionally, until the chicken is cooked through and tender.
Taste and adjust seasoning if necessary. If you prefer a thicker chili, you can simmer uncovered for an additional 10 minutes, allowing some liquid to evaporate.
Serve hot, garnished with fresh cilantro and slices of avocado. You may also add a dollop of sour cream or Greek yogurt if desired.
Notes
For a thicker chili, simmer uncovered for an additional 10 minutes.