You should not focus on one indicator. Try to test several different trading indicators and during the testing process you will be able to select 2-3 indicators that you will use simultaneously for trading.
Indicators like MA or BB will be good while another one like Bollinger band can be the second. The third can be fibonacci retracement. I will prefer just two indicators for short term trading because almost all of them will still give similar results. Indicators are good but not perfect at all. If you check the market very well and check indicators, you will see how indicators can fail traders. I prefer to just hold instead.