Spreading your investments with 5 coins is a good idea, but the target of making you a millionaire someday is based from the amount of investment you will render. Want to become a millionaire? How about investing 2BTC to each 5 coins, a total of 10BTC.
If the value of BTC becomes $100,000 someday. Then your investment will turn to 1 million.
So I've seen a couple of these posts before, Where people ask's for suggestions on which single altcoin to put X amount of money into, with the hopes of it making them millionaires. Thought i'd try doing the same thing, buuut seeing as I Don't really feel like putting all of my trust into one coin, I thought i'd Do it with 5 coins.