the three coins which can surely be a sensation within 3-4 years are ripple, civic and crypterium. Ripple is a coin based upon the idea of global value transfer and has the potential to revolutionize the global banking scenario for sure. Civic is a project which helps in identity verification with help of bkockchain technology. Crypterium is a project which is aiming to integrate virtual currencies in the real world. All of those projects have massive potential to grow and you can earn massive profits by investing in them.