If what you are looking for are short term profits then you need to look at the volatility of your favorite coins and pick the one that shows the highest level of volatility you can find.
And this can be done by using some of the indicators which have been created for this express purpose, however it is important to mention that doing such a thing will increase the risk you are incurring in a dramatic way and you should find a way to counter this tendency, since if you were to fail at achieving this goal the volatility could end up playing against you.
It will be at greater risk also, a trader should take each step very carefully. I mean if it is more volatile how could be better if it fails suddenly, we can say it is crypto but we should already have some precautions for it through which we could take a step forward. The main thing a person should do is he has to look at the coins which didn't have more changes in them. For example, if it is changing its price faster I know it will give him more profit in the day trading but if he goes to loss then also it will give him a sudden loss which will be not a good idea I think in this case. For sure, coins in the market are more volatile in between some of them but there are also some good plans to buy them before they change their nature.
As indicators would be a better choice to take control over the prices I mean to get possible notifications about these coins from time to time and then take a step forward for better investment.
the risk is certain. The risk can be big or small and will not be far from the fate of an investor/trader. It's just how to deal with it or be able to analyze the graph to avoid what is undesirable, of course the analyst is just a picture, not 100% making the flow calm. Investments that don't have a big risk coin rank top 10 coinmarketcap may be analyzed as not having a big risk