The best way you can understand whether particular coin will grow in price or not is the underlying technology. You have to make your own research in order to understand what particular technology brings and what problems it solves. If it's useful and it helps many people to resolve their problems, then it has the value by default and people can start using it. If they start using it then the price of particular crypto asset will grow, that means, you have to look at couple of key factors

- Technology
- Team
- Company Media(their news)

As the example of the good technology, professional team and positive news that played role in my recent investment in one of the ICOs which is called Cryptics - these guys have developed an AI trading platform which makes very accurate price forecast on different cryptocurrency pairs and helps people create better trading strategies based on that.