Coinbase has announced that it is thinking about listing these five currencies on their exchange:
Zcash(ZEC)
Cardano(ADA)
Stellar(XLM)
0x(ZRX)
Basic Attention Token(BAT)
Even though coinbase is not the largest exchange by volume, it is one of the most trusted as it does have FDIC insured USD accounts of up to $250,000(like most banks) and since it does not list many coins, those it does list often see a large uptick in volume and price.