I would love to find a small village somewhere that needs help and has people willing to work to improve their situation. Drill a well, build a school, build a medical facility, and bring in a teacher and a doctor. And then, because I'm a farm kid, teach sustainable farming techniques and provide any equipment needed. With increased farm production people will be able to eat better and sell what they don't need. Kids that have water and food can go to school and learn, equipping them for a better future. Having a medical facility will help keep the locals in better health, but can also bring folks in from other areas and they could get medical help and maybe buy food if they need it.
Simply equip the people and give them the ability to make better lives for themselves.