Most of the altcoins listed here have already shot up.
Hidden gems are to be looked out for.
What if I told you there is one that I know of which have a strong dev team, working products and is going to get some major marketing attention soon.

..high commits on Github.
..highest number of completed atomic swaps.
..top three in China's CCID rating.
..special mention by @cz_binance.
..crypto-conditions (huh what is that?..exactly.)
..working DEX.

I won't bother to even mention the name. Just google these and DYOR. You'll know where to put your money.