My top three picks would be Bitcoin, litecoin and monero as all of these coins are the most popular crypto available in the market. Bitcoin is the master of all crypto and has alot of potential. It is the most stable crypto available in the market as is one of the fastest growing investment in the world. Litecoin is known for its quick transactions as it is almost 4 times faster than Bitcoin. Monero, is the master of all privacy coins and it is famous for its secure and untraceable transactions. All of these coins can show tremendous growth in the coming years.