Preheat oven to 400°F (200°C).,In a small bowl, whisk together olive oil, lemon juice, garlic, thyme, oregano, rosemary, salt, pepper, and paprika. Rub evenly over the chicken breasts.,Place chicken in a baking dish or on a lined sheet pan. Bake for 22–28 minutes, or until internal temperature reaches 165°F (74°C). Let rest 5 minutes before slicing.,While the chicken bakes, bring broth to a boil in a saucepan. Stir in couscous, garlic, olive oil or butter, salt, and pepper. Cover and remove from heat. Let sit for 5 minutes.,Fluff couscous with a fork and stir in lemon zest, lemon juice, and chopped parsley.,Serve sliced chicken over couscous. Garnish with additional herbs or lemon wedges if desired.