HOLY GRAIL SCALPER EA
Best strategy is the strategy that works for you. The strategy that works for you may not work for me.
Every body sees the market differently. For some people it's 5+5= 10 and for some people it is 8+2= 10.
Try to understand the market. Read charts everyday. You will find the market sentiment. Start with a single pair.
Do not run for ready-made strategies. There is no holigrail. Like trading system, broker is also very important. I am trading forex from home with MaximusFx, an STP broker based. It gives a wide anger of administrations like low spreads as low as 0.1 pip, up to 1000:1 leverage.