There are a lot of different coins to invest. But to be successful coin need in liquidity. It must be simple to buy and sell the coin. It is good that there are services like
https://www.koinal.io/ that allow to buy cryptocurrency directly from the bank cards. It will increase the liquidity of the coins and make the use of the coins more simple.
I agree that it is very important to invest in coins with good liquidity. Cryptocurrency becomes more regulated and
https://www.koinal.io/ connect cryptocurrency with fiat.