In a large skillet, heat the olive oil over medium-high heat. Season the chicken thighs with salt, pepper, smoked paprika, and cayenne pepper. Once the oil is hot, add the chicken and cook for about 5-7 minutes on each side until browned. Remove the chicken from the skillet and set aside.
In the same skillet, add the diced onion and green bell pepper. Sauté for about 5 minutes until the onion is translucent. Stir in the minced garlic and cook for an additional minute until fragrant.
Add the rice to the skillet with the vegetables. Stir it around to coat the rice with the flavorful oil and veggies, cooking for about 2 minutes.
Pour in the chicken broth, and stir to combine. Then, lay the seared chicken thighs back into the skillet, carefully placing them on top of the rice mixture. Bring to a gentle simmer.
Reduce the heat to low, cover the skillet, and let it simmer for about 20-25 minutes, or until the rice is tender and has absorbed most of the liquid.
Once the rice is cooked, remove the skillet from the heat. Carefully stir in the heavy cream, making sure to mix it well with the rice and chicken. Allow to sit for a few minutes for the cream to heat through.
Sprinkle fresh parsley over the top for added freshness and flavor before serving.