Season chicken thighs with salt, pepper, thyme, and paprika.
Heat a skillet over medium-high heat and brown the chicken thighs for 3-4 minutes per side.
Transfer the browned chicken to the slow cooker.
In the same skillet, sauté onions and garlic until translucent.
Add carrots and sauté for an additional 2 minutes.
Pour in the chicken broth and stir to combine.
Add the onion and carrot mixture to the slow cooker.
Cover and cook on low for 6-8 hours or high for 3-4 hours.
Check the chicken for doneness; it should reach an internal temperature of 165°F (75°C).
Serve hot, garnished with fresh parsley.