If you pay attention to the DIW project, which by the way is already finishing its ICO and if you hurry, you will probably have time to invest. Well, the second coin is of course Bitcoin, because everything depends on it.
Nothing beats Bitcoin indeed because every Altcoin today are being paired with Bitcoin and every investments count on it.
But for me, Bitcoin is too expensive to invest as an average crypto enthusiast, and I rather invest in ethereum and NEO or Ripple than Bitcoin.
NEO and Ethereum are also the strongest Cryptocurrency in the market today.