now there are many choices of altcoins that can be invested for a long time, such as NEO, LTC, ETH, XRP, XLM, and some other good coins, and if you want to see another good coin you can visit coinmarketcap.com
the coins listed on coinmarketcap are large volumes of coins, and not a guarantee that the coin will develop well. because the one who determines the coin will rise or not is a concept of the coin