Besides the top two coins, NEM, SC, ARDR, EOS, and BTS. All these coins actively DO something besides get traded on the markets (not EOS, yet). While the markets aren't rewarding that often enough right now, I think it is only a matter of time until these hit big as the markets become bogged down with projects that don't get adopted. NEM is far and away my largest alt hodl, followed by my recent acquisition of BTS in the wake of the China fiasco.