Can you suggest me which one is best Altcoin coin hold for 2018? I believe that the best option and the alt that has passed the test of time is ETH, that currency is not only a good investment financially, it also has a very solid platform and a community that supports it, I still see a lot of potential to ETH so I think it is a good investment, you can also go for other top 10 like ripple or tron, but I still prefer ETH.