ETC, ETH, XMR, XRP and LTC are the best coins to trade at a moment and even if price goes down do not panic and hold them till the right time comes as if you get panic then you will be surely selling your coins at huge loss.
And I agree as these are the top five coins in terms of capital and trading volume. These are facing bright future ahead and expected to soon accelerate its price that can make their holders happy and smiling all the way to the bank. Of course, when one is already into trading he can get exposed to other less-known coins which also got potential to churn out nice profits. Just be careful with the pump and dump cycle not unless you already know how to play the game.