In a large bowl, combine the shredded chicken with salt, pepper, smoked paprika, and cumin; toss to evenly season.
Add the Greek yogurt, mayonnaise, and mustard to the seasoned chicken and stir until the chicken is well coated and the mixture is creamy.
Fold in the sliced green onions, chopped pecans, dried cherries, and 2 tablespoons chopped chives until evenly distributed; taste and adjust salt and pepper if needed.
Halve the avocados lengthwise and remove the pits; if desired, scoop a little extra avocado flesh to make a larger cavity for the filling.
Spoon the chicken salad into each avocado half, dividing it evenly, and sprinkle with additional chopped chives to finish.
Serve immediately.