Are you a newbie in trading? If yes then I advise you not to trade at this market situation because its too risky specially if you don't know what trading is. Other's suggesting shorting bitcoin, but mostly its done by experience trader.

For me the best method at this bearish trend, is to do nothing and just continue to observe how the market moves. Right now its on a green zone and probably might be going on a $7K run. If I where you, I will just buy at every dip and accumulate.