There are many that you can buy right now.
1.Waltonchain
2. NEO
3. IOTA
4. OmiseGO
5. Request Network
these are some of my favorites in which I am invested. However, dont buy because you read about them .Do your own research.
I really like these picks. Maybe the only change i would do is add Vechain along with Waltonchain since they are pretty much solving the same problems and belong to the same sector.