I try to follow the news about the listing of promising coins on different exchanges, this is almost a 100% chance that after listing the coin will take off, it has been proven more than once from my own experience. For example, now I have bought coins for a budger and nwc, which will soon have a listing on huge exchange. I am sure that the price of these coins will rise immediately.
What do you think of this strategy? How do you define a buy zone for yourself?
That's a good stuff for you. Updating yourself with the most uptodate news from different sources could help you to analyze even better to choose what coins do you invest next. Stuff like influencers tweets, bad news from exchange etc. That's why other than reading charts, stuff like news from medias could help you really that much(for example Elon's tweet way back then).