Hold for long term is best thing to do for now, but we have to choose good coin that have strong fundamental, like LTC, EOS, TRX, XLM, XRP, BNB.
The chances that coins like BNB, TRX and EOS dont exist in 3-5 years are very high. Dont take it for guaranteed that they will ever pump again. The next bullrun might also be a "BTC only" run with lots of Alt-sellings in favor for BTC!