For trading coins you choose BNB and also filter out your trading method to Intraday Trading. Since value of BNB is much lesser than BTC it will give you shared in bulk. Meaning slight change in its prices can give you multifold change in your trade. For BTC to move 1% upwards can take lot of time or money and remember that 1% would be change against whole 1 BTC. You may afford only few mBTC thus making your profit much lower than BNB. Better choose BNB and also choose top hiking altcoins when you go for the intraday trading with lower buy prices. Probably $50 to couple of thousands per coin.