Litecoin you can buy at
Bitstamp,
Coinbase,
Kraken
It's been the most dormant of all coins usually. Most days just moving +-$2-4 so not great for trading, but maybe good for holding (at least that's what I do). Tbh I'd love to see it finally "wakeup" and rock out hard
Many people do seem to think it has a future. But I too believe mostly in, buy at least bitcoin 75%+ and the rest can be alts