Personally I have gone for a mixed bag to include:
- Ethereum
- Waves
- Shift
- Ardor
- Radium
how about swarm token? That will start ICO tomorow (09/21)
Ethereum is one of the best altcoin to hold for long run of time, because this coin have good condition in the market. In addition monitor also the waves and ark due to good movement of their price, I believe that their value were increase this following days