Multiply my money!

OK, let's take a ride together.
If you are invested in cryptocurrency or watching it and thinking about investing I want you to play.
I bought BTC about three weeks ago, sold some, bought some BCC and BCH and today my $400 is worth $498 - very close to a 25% ROI. Nice!
My interest was and remains to learn about cryptocurrency, exchanges, trading, etc. If I were doing this to make money I would HODL BTC and forget about it for a couple of years. I will likely do that in February after this vacation expense. Actually unless something drastic happens I will set up an auto-buy for a couple hundred dollars of BTC each month, see if that gets me anywhere.
But now I want to play with alt coins. I want to find that elusive 10x multiple that is poised to happen.
I don't have any more money to play with at the moment so I am selling my portfolio tomorrow to free up cash to buy alts.
Here's where you come in...given $500 to buy alts (anything but BTC, BCC or BCH) which ones would you buy? I will buy the suggestions that I agree with and use the virtual trading platform https://www.cryptoground.com to create a virtual portfolio, letting you know how your coin suggestion turns out. This is your chance to build a virtual portfolio of alts using my money. Of course I bear the risk and keep all proceeds, so for you this is just a fun intellectual exercise to see how good a coin picker you are!
I plan to sell all crypto December 21st to free up cash for a 10-day Disney Cruise / Disney World trip, so I am looking strictly for short-term moves.
What say you? What would you buy?