Preheat the oven to 425°F (220°C). Line a large baking sheet with parchment paper or lightly grease a baking dish.
Pat the chicken thighs very dry with paper towels, especially the skin.
Place the chicken in a bowl and drizzle with olive oil. Season with paprika, garlic powder, onion powder, Italian seasoning, salt, black pepper, and smoked paprika. Rub the seasoning evenly over the chicken.
Arrange the chicken thighs skin-side up on the prepared baking sheet, leaving space between each piece.
Bake uncovered for approximately 35–45 minutes, depending on the size of the chicken thighs. The skin should be golden and crispy, and the thickest part of the chicken should reach 165°F (74°C).
Remove the chicken from the oven and let it rest for about 5 minutes.
Garnish with fresh parsley and serve with lemon wedges if desired.