Bittrex is the best way to trade SBD, but that limits trading primarily to a US exchange. Poloniex is another one that exchanges SBD, but I've heard that you can't transfer in and out of the wallet. I don't know if they fixed that problem. HitBTC list both STEEM and SBD, but transfers have been disabled from the STEEM and SBD wallets for possibly a month now making it completely useless. We desperately need alternative exchanges in the event something happens to another exchange. If you can't move your SBD into an exchange to trade it for other currency, then what value would it have?

If SBD gets listed on Binance, there would be a pump and dump, but chances are that SBD would settle about 25% higher than it started.