With that amount of money, although it could be considered a safe service, I'd still recommend a hardware wallet in order to be more responsible over your own coins, but that's just my opinion.
As for good coins to invest in other than Bitcoin, personally I'm looking at Monero, Ripple, and Litecoin.

And as a word of advice, try not to give into FUD and always think about a decision before taking somebody else's advice.

Good luck!