As for the place to buy ZEC, why are you lazy enough just to visit CMC, and see which place you can buy ZEC? You have plenties of market to buy ZEC
here. Don't be lazy.
CoinMarketCap is an old and respected stats service, but I've learned to be highly critical of their exchange listings for specific coins.
A while back, I tried to get into arbitrage and opened accounts on exchanges that CMC listed as having the lowest and highest prices. Half of those platforms turned out to be scams, or the listed price was just fake bait to lure in new clients. I actually lost crypto trying to make those trades.
Anyway, now I've just decided to trade Monero (XMR) through a crypto gateway. I'm holding off on ZEC for now—the token pumped way too high and is already dumping hard. But I'm officially buying XMR, with full KYC verification, on the Cryptomus platform.