I will buy cardano, Nem and Ripple. I believe these coin are full of potential and with good development and growth in their respective network, there will be equal or greater value that will accord these coin. Cryptocurrency golden stage is still ahead. There is much money to be made in future by buying low now!
usually low coins can also be profitable, so the coins you mention tend to rise and you can make a profit, not always potentially strong coins, sometimes low coins are really profitable.
Cryptocurrency gold stage in the future, so try your best so you can get gold from Cryptocurrency. and currently this might be the best time to buy a lot of Altcoin because the value is still low.