Buy Bitcoin, then look for some Exchange that makes the exchange for you, you have Yobit that does it.
But if I were to start an investment if I were you, I would buy Bitcoin the same or else I would buy one part in Bitcoin and the other in altcoins that are promising like Waves, Litecoin, Dash, Ethereum, Monero and so on.
If you enter the world of crypto-coins always remember Bitcoin is the boss.