The strategy that is easiest to absorb when you're new is trend-following. Specifically uptrend-following. Use a demo account to rehearse. Stick to daily charts, put up a medium-term moving average such as a 50-day to confirm the most consistent trends, buy using a pre-set order where price is recovering after a pull-back. Don't hold too long. Always set a stop-loss. Don't risk a big slice of your account on any one trade. One trade at a time.
The best strategy / trading system is that you will create by own knowlenge and experience. And let it be any trading style that you like best (try everything first to be sure in your preferences). This path is quite difficult, but the only correct one.
There is no universal answer to this question but I think as a beginner it's best to start out by learning some stuff about technical analysis and risk management, and then pick a trend following strategy. I think band trading is a good starting method.