if now I recommend xrp and eth for the long term in 2020 because this coin has a good FA analysis that can make prices go up
XRP might be a good choice because since bullrun 2017 many experts predict that the price of XRP will touch 5$ someday, and if you buy it now and the prediction becomes real then you will get a lot of profit.
Try to calculate how big the marketcap for XRP alone if the price touched $5, then compare with total marketcap from all coin. Once you do that, you will realized if it almost impossible to reach that price