01 - Preheat grill or grill pan to medium-high heat.
02 - In a bowl, coat chicken breasts with olive oil, chili powder, paprika, garlic powder, cumin, salt, and black pepper, ensuring even coverage.
03 - Place chicken on the preheated grill and cook for 6-8 minutes per side until internal temperature reaches 165°F and juices run clear. Let rest for 5 minutes before slicing into strips.
04 - Heat a skillet over medium-high heat. Add corn kernels and cook, stirring occasionally, until lightly charred, approximately 4-5 minutes.
05 - In a mixing bowl, combine mayonnaise, sour cream, cotija cheese, smoked paprika, chili powder, cilantro, lime juice, salt, and pepper. Fold in the charred corn until evenly coated.
06 - Divide cooked rice among four serving bowls. Arrange sliced chicken, street corn mixture, red onion, jalapeño slices, fresh cilantro, and lime wedges on top.
07 - Serve immediately while chicken is warm and corn mixture is at room temperature.