There are many coins going 50x these days am sure you see some on coinmarketcap the problem is you cant just tell you will have to trade man
For me is Ethereum, the three-year-old blockchain technology that's been largely used as the foundation for decentralized applications.
the best choice currently lies in ethereum because the ethereum team continues to work solidly to be able to continue to improve coin development better and it can be said that ethreum is now one of the best and guaranteed altcoins to grow again.
I am sure that in the future ethereum will have a much higher value than the highest price reached at the end of last year.