Preheat your grill or a grill pan over medium-high heat.
In a small bowl, whisk together honey, chipotle sauce, olive oil, garlic powder, onion powder, smoked paprika, salt, and pepper.
Place the chicken breasts in a shallow dish and pour the marinade over them, ensuring they are well coated. Let them marinate for at least 15 minutes (or up to 2 hours in the refrigerator for more flavor).
Grill the chicken for about 6-7 minutes per side, or until the internal temperature reaches 165°F. Remove from the grill and let it rest for 5 minutes before slicing.
In a large bowl, combine the cooked brown rice, black beans, corn, cherry tomatoes, and cilantro. Mix well and season with salt and pepper to taste.
To assemble the bowls, divide the rice mixture among four bowls. Top each with sliced chicken and diced avocado. Serve with lime wedges on the side.