Hi,

I am fairly new as well to the crypto's, but as you know there are a lot of coins circulating around and ofcourse there are a lot of coins that won't succeed and coins that will succeed. My suggestion would be to google as much as possible and do check out their website/projects on what they are creating. Also a lot of them have whitepapers, these are really helpful in understanding their project.
Only invest in coins/projects in which you believe.

Best potential from my point of view has to be ripple. Ripple connects banks, payment providers, digital asset exchanges and corporates via RippleNet to provide one frictionless experience to send money globally. Basically the currency addresses the need to keep money flowing freely.

There are more, but go out there and explore!

Good luck