This is a very common misconception, there is not such a thing as the best indicator for a market in particular, almost all indicators are calculated based on the high, low, open, close and the volume of an asset, and each indicator is nothing more but a formula which makes more obvious a particular aspect of the market, like the trend, volatility, the strength of a movement and more.

So do not fall victim of all the hype you find on youtube and many other social media websites that promise you the world, when in fact you will get nothing in return.