Bitcoin is always on the list mate. It is still the best coin around the market by far, basing on its value and marketability. However, since that is a given, let's focus on other coins that could make a splash in the years to come. For that, I would say Ethereum, I think that it has gained so much support from people based on trust in the coin in the the technology backing it. Many use it in transactions as well as hold it for future trade. It has also proven itself as one of the enduring and reliable coins that, although its rise may be slow, it has the capacity to hold its ground against negative market movements that prevents its decline