As for my strategy I always use the fundamental analysis, the basic one as it always give the result I want.
What a risky method is that, but it's still good especially when you are updated and have many sources.
Just a piece of advice, don't really rely on Fundamental Analysis because it could lead you to loss. Are you aware of 'inside jobs'?
For example, before the positive announcement of a particular coin, some people already bought the coin and dump it on the peak when the news published.