Help. What's the best Blockchain like tech for Distribution of Digital Content?

There are a great many decentralized Digital Content platforms arriving on the scene. But, which are the best, and going to have the most impact?

Specifically, I'm interested in Books and Music.

I know of Openbazaar, Syscoin, Bitbay, Library, and Alexandria.

There must be many more platforms, and probably a dozen building on Ethereum.

Please give me your thoughts in the comments below?

Thanks