BNB is currently hovering around 646, and the 4-hour chart suggests a bit of an oversold rebound. The J value of KDJ has already dropped to 20, indicating a short-term need for a rebound.
If it stabilizes above 651 and breaks through 660, a short position can be taken with a small amount.
However, the MACD is still underwater, so don't be too aggressive; set a stop loss below 640.
For the rebound, first look at the 655-660 resistance zone, enter and exit quickly; don't get too attached!