In a small bowl, combine the dried thyme, rosemary, oregano, paprika, salt, and black pepper.
Pat the chicken thighs dry and sprinkle the herb mixture over all sides, pressing it into the meat.
Heat olive oil in a skillet and sear the chicken thighs for 2-3 minutes on each side until golden brown.
Sauté chopped onion in the same skillet for 3-4 minutes, then add minced garlic and cook for another minute.
Pour chicken broth into the skillet to deglaze, scraping up browned bits and simmer for a minute.
Layer chopped carrots and potatoes around the chicken in the crockpot, then pour the onion-garlic-broth mixture over everything.
Cook on LOW for 6-8 hours or on HIGH for 3-4 hours until everything is tender.
Remove everything onto a serving platter, garnish with fresh parsley, and serve.