First of all, you should try to learn as much about cryptocurrencies as possible. You should check the coinmarketcap to see the movement, supply, and 24 hour volume of the major coins. And, after that you will know enough about the cryptos in general. That will help you in deciding. I would recommend you to check out some good altcoins that you might find interesting. The altcoin Iota seems interesting, and within just few weeks it might reach 20$ per coin. Other alts like, ETH,and Monero are also some good coins for investment. Do not invest all your money into 1 or 2 coins. You should invest half of your money into Bitcoin and other half into altcoins. So in that way you can have some good profits.