01 - Rinse rice under cold water until water runs clear. Combine rice, water, and salt in a saucepan. Bring to a boil, reduce heat to low, cover, and simmer for 15 minutes. Remove from heat and let steam, covered, for 5 minutes. Fluff with a fork before serving.
02 - In a bowl, whisk together olive oil, chili powder, smoked paprika, cumin, garlic powder, salt, pepper, and lime juice. Add chicken breasts and coat evenly. Let marinate for at least 10 minutes at room temperature.
03 - Heat a grill pan or skillet over medium-high heat. Cook chicken for 5 to 7 minutes per side until cooked through and juices run clear. Transfer to a cutting board and rest for 5 minutes before slicing into strips.
04 - Heat olive oil in a skillet over medium-high heat. Add corn kernels and sauté for 3 to 5 minutes until slightly charred. Stir in smoked paprika, chili powder, and salt. Remove from heat.
05 - Whisk together sour cream, mayonnaise, lime juice, hot sauce (if using), and salt until smooth and creamy. Adjust seasoning to taste.
06 - Divide cooked rice among four bowls. Arrange sliced chicken and street corn on top. Drizzle with crema, then sprinkle with crumbled cheese, cilantro, and jalapeño slices if desired. Serve with lime wedges on the side.