Soar is one of the most promising project.
Soar is a decentralised platform for high-quality drone content that connects customers with content creators in a secure, trustless and distributed blockchain community. The first stage of the implementation of Soar will be the creation of a marketplace for drone content including still images, video, aerial maps and other specialist drone content. The Soar marketplace will allow drone operators to upload and sell content to other Soar users anywhere in the world. The Soar marketplace has the potential to allow an exponential increase in the value of mapping data and drone content by realising the untapped financial potential of existing drone content. More: https://soar.earth/investors.html