If you have money, then I have some suggestions to protect your assets. But if you don't already have money, your options are going to be very limited. Which, like... yeah, that's the fundamental problem leftism is trying to solve.

The best thing I can think of for someone with minimal options and minimal savings is to try and take out a conservative, manageable personal loan right now while interest rates are low and banks are throwing money around, then sock that money away as emergency cash (in a bank, not literally cash). But that still requires you to have enough money to make payments on the loan, confidence that you will be able to make at least the minimum payment in the future or restructure the loan in the future, and be able to qualify for a loan (and a bank account) in the first place. The system really really screws people.

A similar last resort option, if you can do and are truly convinced a crash is close, would be to try and get a no fee credit card with a 0% introductory interest rate. That can ensure that you'll be able to pay your bills for a bit if you lose your job during the 0% interest period, for example, though you will have to pay it all back in the end or declare bankruptcy (which... also an option, but again, ironically an option more accessible to rich people.) And charges accumulated during the zero interest period will start to accrue interest if they aren't paid off before the end of the introductory period. But I do know someone who was zero-dollars-in-the-bank poor and managed to get through an especially rough patch by playing around with credit card debt and interest rates. (It can be dangerous though--you definitely have to be good at math, good at personal discipline, and know what you're doing.)