I think that a coin that can provide very much profit is coin like bitcoin and some coins that have very high movements and the trading volume is very high.
of course because coin bitcoin is potentially large and the price increase is also fast. so bitcoin is very profitable because there is a lot of evidence that investors are quickly getting rich by investing in bitcoin
although the increase in bitcoin prices is also fast but in my opinion it is still waiting for time to be able to get the moment of increase, because by investing in bitcoin is only good for the long term, not for the short term in order to get big profits, investors also invest in bitcoin also waiting a long time to get the right moment to get profit.