all altcoins of course can all be profitable, but what is difficult for us to predict is when altcoins go up, especially now there are so many altcoins made, and there are many altcoins that when registering at market prices rise high and can suddenly drop dramatically and it will take a long time to get up again, so you can choose an altcoin that you think has very fast potential and movement, so you can make short-term investment profits, if in the long run, choose bitcoin, it's my safest.