Volatile market is what makes crypto more risky but profitable and that to in a very short period of time.
Preferably, I will like to go with Ethereum, Litecoin, Monero as these are trusted coins and have shown great statistics over a period of time. The coins have wide acceptance in the financial market and a good development team behind them. Also, they have good market capitals as well. These coins have features better than the pioneer and hence have more adoption rate. They are also good assets for transaction as they keep the information of the sender and reciever private. These coins have great potential and I am expecting good amount of profit returns from them.