Well, DPOS rewards the delegates of the blockchain. In Lisk case there are 101 delegates which are voted by the community. They are voted based on the work they do for Lisk, or what they are doing to advance the blockchain. You can check each delegate on the Lisk forums and see/read what they do to work or earn your vote.
I've also heard that Chinese government was buying a lot of some time ago NEO. Sounds promising!
NEO has some disadvantages though. The blockchain takes forever to synchronize with the client, the client is not very user-friendly and the coins take a while to appear when you transfer it from Bittrex trading exchange. I like ARK better.