There are many potential altcoins worth buying, each person has their own thought as well as experience about coins that make him/her evaluate a coin. Thus I encourage you to take your own research to find good altcoins to buy. Because nothing is completely sure in crypto market, also the fluctuation of any coin, but you perhaps have a reference on coinmarketcap.com. Let make a observation, plus analyzing , then afterward I believe that you can have a great decision. Almost many altcoins have lower price at current, let take advantage to buy at low price so that you can reduce the loss. Expecially, from my observation, you think you should keep an eye on ethereum because it’s mentioned as a great potential coin.