In a large nonstick skillet, cook bacon until crispy, 8 minutes. Drain on a paper towel-lined plate, then finely chop. Set aside.
Meanwhile, in a large bowl, stir together cream cheese, cheddar cheese, garlic powder, and paprika and season with salt and pepper. Use a cookie scoop to form mixture into 18 small balls and transfer to a parchment–lined baking sheet. Refrigerate until firm, 1 hour.
In a shallow bowl, stir together bacon, chives, and pecans.
Roll balls in bacon-chive-pecan mixture, insert a pretzel stick into each, and let come to room temperature 15 minutes before serving. (If not serving right away, loosely cover with plastic wrap and return to fridge.)