I have not used Binance before, but it seems to be a trusted exchange used by many people for their future trading. I don't use it for future trading for no serious reason, but the exchange I prefer using all the time while trading futures is Digifinex, and currently I have a BTC/USDT pair running on 3x leverage for me on that exchange. I have been on that trade for a week and some days now and am already profiting from my position. Just use the above link provided in the first comment to get more exchanges and their ranking.