Kucoin Shares, Ziliqa, Zcash and Dent are good buys for me. They are alive projects, and their devs are really serious about making them boom. They were just hampered down by the plummet of the market. Well, anyway, even established altcoins were affected as well. Altcoins are correlationally proportional to BTC so if this pump will continue to bullrun, you'll definitely gain big in altcoins. Just be cautious and wise about the amount you will invest. Do not invest what you can't afford to lose.