Ever since it broke 20k, BTC has remained with the same euphoric trend. We are currently in a short-term retracement with a good opportunity to return the bull run price action.
If BTC decides to finally break down, next support could be at 30k; not only this is a technical support, but also a psychological number to buy at. Also, based on historic bull-run retracements it has done, -30% has been a repetitive % correction.