This is really one of the most red-hot emerging industries in the world, and there will never be a better time to get involved in it than right now. Drones are everywhere. They used to be the preserve of the military, but now they have many varied different everyday appliances.
If you see a sweeping overhead shot of land or a building on a TV show, once upon a time it would have been taken from a helicopter, but now it's a much cheaper drone. People use drones to record their wedding day, or survey building sites, or just to get incredible photography. Not only that, drones can be used as a bespoke delivery service, often faster than transporting things by road! All you need to get setup is a drone, and they're not as expensive as you think. Buy one, teach yourself how to fly it accurately, and offer your services online.