Locate an RC enthusiast (named Mark) in a back garden close to DedSec’s Mission Dolores Park Hackerspace once your first Main Operation has concluded, then find any of the ten starting points to begin a drone race, which pits your Quadcopter against a series of square-shaped waypoints in order to reach a goal in the quickest time possible. Obviously, the Quadcopter is required first. You can construct it at the 3D Printer in your Hackerspace when you have the funds.
When you’re about to start a Drone Race, your Smartphone notes the times needed for gold, silver, or bronze metals, the length of the course, difficulty, and the rewards (Followers and Money). Try attempting these courses as often as possible, especially after purchasing ./Research abilities to enhance your Quadcopter, since these races are excellent for increasing your Followers and cash. The amount depends on your performance (go for gold!) and course difficulty (try to work your way up to Hard for the most payoff).