Poloniex, Bittrex, Hitbtc, and Blocktrades all support direct SDB/BTC exchange. Shapeshift seems to support STEEM but not SBD.
Note: I advise against using Hitbtc and make no recommendation either way on the others.
Poloniex, Bittrex, Hitbtc, and Blocktrades all support direct SDB/BTC exchange. Shapeshift seems to support STEEM but not SBD.
Note: I advise against using Hitbtc and make no recommendation either way on the others.