There is one new project that takes on this proof of capacity algorithm, I think the project name is MASS, it has good value and it's listed on MXC exchange, I've heard it's very profitable to mine but with HDD or SDD space, if people aren't on this project yet I believe it will worth mining, I remember when burstcoin had good hype some make good profits out of this coin
https://massnet.org/en/