Steem is already on binance
https://www.binance.com/trade.html?symbol=STEEM_ETH
https://www.binance.com/trade.html?symbol=STEEM_BTC
Shameless affiliate link here: https://www.binance.com/?ref=25680660 (you don't lose a penny while I got a tiny fraction of your transaction).
We did this a month before it was listed ;)