No coin guarantees you a profit, because all crypto coins fluctuate in price, investment options like Bitcoin and Ethereum will give you profit if you invest large amounts, but there are no guarantees, always look at the risk and take the best possible profit, don't be too greedy when you hold coins to get big profits.
in the long term, your chances of getting a profit of more than 10 to 100% are greater, but all of that is hard to come by because there are many coins out there that are pumped and then dumped