Here are some of the Dapps that I recommend you looking into working on, mainly to learn, but also to provide value to a project on the Steem blockchain, and then of course earn some Steem Power.
DTube, DLive, Steemhunt, Tasteem, DSound, and Steempress. Be sure to list some of the big projects I'm missing listing here that all Steemians could add value to if they set their mind to it.
▶️ DTube
▶️ IPFS