Look for coins that penetrate huge industries. Blockchain has applications to many of it. Look for the coins that have more use-cases rather than the hype. I've been flipping ICOs that has hype, but I don't hold the for log(e.g. TRX, VEN, XVG). I prefer coins that would disrupt some industry with its usecase, and with less hype, so I can accumulate(Maker token had no hype for 3 years).