I think that the most profitable strategy is to walk promising coins with low capitalization and sell on the pump.
Why it must low capitalization coin? So many low capitalization coin but they don't even have any product and can I call that as a good project? they are only pump and dump schemes and I should not try to believe it. Remember about the fact that majority of them died in a few months later. Low marketcap coins have a lot of possibilities to become the next scam coin.