I think that you should continue to concentrate on the coin that does have a high market share and transaction volume. By having the coin then you will get comfort in investing and the opportunity to experience the loss will be much smaller. This is a form of choice and for me choosing a coin that is in the top 10 best coin can be a top choice.

You can see on this link: https://coinmarketcap.com/. By choosing a high marketcap then you open up the opportunity that the investment we have will grow and get closer that the coin will have an increased price in the future.