If you're looking for a longterm investment with great profit, then there's no doubt that the best coin there is, is bitcoin. Up until now, we can see how the price had surge up from what it was before. Although, there are other great coins by which the potentials are becoming noticeable due to the increase in their value such as Eth, Lite and Waves. so far, I'm watchng out for Deeponion and ETN because of its credentials. you can also do some of your own research.