It is difficult to answer this question unambiguously. Because no one knows what the future holds. After all, this year no one knew how much the market will fall down. So to judge the most promising coins, which surpass BTC I don't see the point. I still believe that the first place has always been and will remain for BTC. Then there is ETH, and only then all the rest of the coins. Therefore, if there is extra money, then invest in these coins. If capital is not enough, then invest in NEO, ADA, EOS or XRP.