1) Phore- Pivx fork with very ambitious devs. Whats not to like? Marketplace coming soon along with segwit. They have a great community that really believe in the product.
2) Sumokoin- Fork of Monero with very smart devs. Good mining coin as well.
3) Hush- Fork of ZCash with the lead dev being one of the original dev designers for ZCAsh. I believe they are implementing a Hush private messenger thats going to be big. There devs I believe are some of the smartest in crypto. That being said, they need to get someone on their team to market it better. I sometimes feel they are just too content with cryptopia and Barterdex. Perhaps they are trying to mine it for cheap while they still can.
In my opinion, all three of these have the potential for x10 times gain minimum. They all need to be on bigger exchanges. Some of them need better and more marketing. If things fall into place they all should be in the top 100 one day.