Don't get me wrong, I'm a strong Bitcoin believer for the long run. However, I'm starting to learn about swing and day trading and I would to have a option to short sell crypto for this purpose. Which is the best exchange (good volume, good reputation) to offer that option?
If you are going to trade and looking for a platform with good features and technical guide. I suggest you to use Binance, Bitmex and even Kucoin. These exchanges offer good trading features and all have margin and future trades. Kucoin has recently release their margin trading so the first two are known to have these and many people using these two exchange. It has considerable volume, liquidity and especially all of them are trusted exchange. Though all of it is centralized. Im not sure about dex market that has good volume maybe IDEX.