I got this question for many times from newbie’s! Actually, it depends upon the trading style and trading strategy as well. If you want to trade with rangy market and low volatility then you should go for EUR/USD and others major currencies! In addition, if you are comfortable with big moves then you may use GBP/JPY, Gold and Silver! Even you also can use CFDs, Indices instrument here! But I would recommend you to start with EUR/USD, to understand market nature and strategy!