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. Grill chicken for 5-7 minutes per side until cooked through and juices run clear. Rest for 5 minutes, then slice into strips.
04 - In a skillet over medium-high heat, add olive oil and corn kernels. Sauté for 3-5 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.
06 - Divide rice among four bowls. Top each with sliced chicken, street corn, a drizzle of crema, crumbled cheese, cilantro, jalapeño slices (if desired), and a lime wedge.