This is like a punch into the sky
I don't think, that you will reach a great amount of money if you will put all in one coin
I'd recommend you to divide in on such coins as:
1. Ethereum
2. TRX
3. Ripple
4. Litecoin
5. NEO
Also look for other tokens as ZCash, ZCoin, Cordano, Monero
I also believe that you can never invest in one direction! Diversification is the first rule of investors! It is always necessary to distribute its cash assets in several areas! And not only in the cryptocurrency, not only for different coins, in addition to the cryptocurrency should be something else