First you have to look at the development of the coins that are in the top 15 coinmarketcap, after that do a little research to choose the coin you want to invest, if this is not done then the coin investment will not produce anything, many people choose altcoins, such as Ethereum, BNB , Ada, Matic and others, considering that the coins I mentioned are not so risky if you make an investment, it is proven that their current condition on the market is in good condition.