For now I only have Bitcoin, ETH and LTC. I am not interested in other new currencies, but I will wait for the Libra (Facebook coin) which will be present at the beginning of 2020. Thank you, and greetings from me.
I think a lot of folks have this mistaken idea that Libra will be like BTC and something they can use an investment. It's a stablecoin, meaning it's equivalent to simply putting your money into paypal and using it dollar for dollar.
I honestly don't even know why it'd be any better than simply using paypal to begin with.