Preheat your oven to 375°F. Pat the chicken thighs dry and season both sides with salt, pepper, and smoked paprika.
Heat olive oil in a Dutch oven over medium-high heat. Sear the chicken thighs skin-side down for 5 to 6 minutes until golden, then flip and sear the other side for 2 minutes.
Remove the chicken and add butter to the drippings. Sauté the onion for 3 to 4 minutes until soft, then add garlic for 1 minute.
Stir in the rice and toast for 1 to 2 minutes, then add wine, scraping the bottom of the pot for flavor. Pour in chicken broth, lemon juice, zest, thyme, and oregano.
Nestle the chicken thighs skin-side up on the rice and transfer the pot to the oven. Cover and bake for 30 minutes.
Uncover and bake for an additional 10 to 15 minutes until the skin is crispy and the chicken reaches 165°F. Let rest for 5 minutes before serving.
Optional: stir in baby spinach or peas before serving and garnish with fresh parsley and dill.