I think you should invest in SiaCoin. It is one of “applicable” cryptocurrencies. Sia is a project to create a decentralized file system, thanks to which anyone can rent out space on their hard drives. Despite the fact that SiaCoin is not a pioneer in this field, and several more blockchain startups are solving this problem, recently developers of this particular currency announced the addition of public links to the distributed file system. If this venture is successful, SiaCoin can become the basis for a new decentralized Internet.