I'm a big fan of the steem blockchain, just because you can use it.
And I'm also thinking because this exact reason steem is ahead of Eth, EOS, TRX.

But Tron is also interesting, especially because it's price atm.. But I still need some more details about TRX.

Ripple is also very interesting, I think it will make some money because it cooperates with all the banks. I'm trying to make some money of XRP, without supporting banks.
Stellar is more in the freedom direction and therefore much more interesting (decentralized market stellarx). Going to change XRP to XLM later. :)

Maker DAO is also pretty interesting. A self regulating, fully ethereum backed stable coin.

Augur as betting/ prediction project.

Siacoin/ Internxt/.. Cloud Storage is also very interesting. But I really don't know which coin is good..
Tried to inform myself.. but just found out that most of them somehow are forks..^^