Almost everyone recommends only ETH, BNB, EOS, LTC
tomo + hpb
I also want to select three altcoins which are different from yours because I have different choice. For me there are there coins bitcoin..ETH and lite coins. Ripple is also one of good coin to invest our money for long term now a day coins are low in price so better buying it now a day after few years it is going to be expansive.
And really now only BTC, ETH, EOS, BNB are more or less kept afloat. On the other altcoins you can get a profit, but it is necessary to constantly monitor the market of altcoins and, accordingly, buy and sell them on time.