7) FWIW, the exchanges are, in alphabetical order: Binance, Bitfinex, BitMEX, Coinbase, Deribit, FTX, Huobi, Gemini, Kraken, and OKEx.
There are some other interesting exchanges but they're less comparable to FTX: retail, regional, etc. (Upbit, Bithumb, Bitflyer, Paxos, etc.).