I think it's a bit difficult to know which type of coin can last for a long time with valuable value, but maybe you can read the company's white paper and roadmap and you can search the market for a lot of growth on ICO growth that has growth and interest prospects market.
In identifying what is the best coin in long terms is the question that nobody can give the exactly answer. I'm saying that because I believe that no one can predict what will going in the near future. We don't even know what will be the successful coins or what coins is going in it's end. However, we can have some guidelines or basing information or documents about the coins performance in the past years of it's existence in the market therefore it is better that you should make more research so you can gathered more information about in your concern and hopefully you can make a better choice.
