In my particular case, I'm very concerned about privacy (that is mainly why I use Linux

), I have invested in the following two projects. ZenCash and DeepOnion.
Both of them are quite young and both of them can hide you IP and (Deeponion is a sort future) are able to make untraceable transactions. I think that if somebody want a privacy coin, these two facts (anonymity and untraceable transactions) are the main pillars.