What coins would you buy next week? - with $500

What coins would you buy next week? - with $500 -Jan 31 2018

I am somewhat diversified. I hold mostly top 50 coins with a
handful of longterm hopefuls. I can't decide what to do. I really like Altcoins, they seem to have a better upside. But, what I would like to do is just buy $100 of Bitcoin, Ethereum, and Litecoin (and try not to spend it). Then buy another $100 of cardano or verge and maybe play around with $100 on some day trading attempts. What do you think?

Good Luck and Good Fortune!
@kryptokev42