All of the above are pretty right, but have forgotten to account timing. You have money for how long?
Short term speculation and Longtime investing.
On a short timescale there is probably Bitcoin again since we learned from past experiences that a fork of Bitcoin results into an altcoin airdrop like Cash, Gold. Due next month again.
On the other hand BTC makes a perfect long always. 50% into BTC.
The midrange of topmarketcaps you would have to nannysit on a daily base, watching charts and reading TA. 25% into that, if you can do the task.
If you are completely up for a gamble, ready to just burn it all, than go for something completely out of the blue. Alts traded on small sites like Yobit, Allcoin, Liqui (tradesides complete overview at
https://coinmarketcap.com/exchanges/volume/24-hour/all/ )
You can even take a go on "longterm gambling" which is called differently here, I think one calls that an ICO
25% for that if you are up to loosing those 25%, or love to gamble.
That creates three possible playing fields. Choose and weight according to your own preferences, nobody else can tell you to like this or that more than the other approach.