This article released yesterday mentions the five promising altcoins that need to be a part of any serious investors portfolio in 2017. Here's the summary:
#1 Sia- cloud storage
#2 Ardor- businesses looking at blockchain solutions
#3 Ripple- banks sendinf international payments in real time for low cost
#4 Stratis- blockchain development platform through C#
#5 Golem- world first decentralized super computer
Check out the full article at
http://www.businessmole.com/best-altcoins-cryptocurrencies-invest-2017/