Mortgage rates are penciling-in to be around 10% on a first mortgage note by Jan/Feb - so everyone with a couple of brain cells to rub together knows what that will do to real estate prices.
Some good things will come out of this - like the Gen Z's in the market will get a chance to become homeowners, but in trading terms, this is a very good opportunity. DRV is an easy ETF symbol to broadly short the real estate market with - I recommend sitting on the thing for several months.
Shorting bonds directly works, but will vary by your broker for availability.