Prepare the oven. Preheat your oven to 350°F (175°C).
Season the Chicken. Mix 1½ teaspoons of smoked paprika, dried thyme, garlic powder, 1¼ teaspoon of salt, and black pepper in a bowl. Use this seasoning to coat the chicken thighs.
Brown the Chicken. In a Dutch oven, heat oil over medium-high heat. Brown the chicken thighs for 2-3 minutes on each side, then transfer them to a plate.
Saute the Aromatics and Rice. Leave about 2 tablespoons of grease in the same Dutch oven. Add onions and cook for 2 minutes, then add garlic and cook for 1 more minute. Stir in the rice and cook for 1-2 minutes.
Add Liquid. Pour in chicken stock and add ½ teaspoon of smoked paprika. Stir and scrape up the browned bits from the bottom of the pan.
Add the Browned Chicken. Nestle the seared chicken pieces on top of the rice and bring everything to a simmer over medium-high heat for about 2 minutes.
Bake, Covered. Turn off the heat, cover the Dutch oven with a lid, and bake in the preheated oven for 30 minutes.
Baked, Uncovered. After 30 minutes, remove the lid and continue cooking for another 15 minutes or until the chicken is fully cooked.