If you're asking where to invest it means you have some money lying around. In such case, just buy bitcoin. It's already down more than half from its ATH and fundamentals are as strong as ever.
Most obvious options are BTC, ETH, gold if you're expecting prolonged recession. A small apartment for rent is also a good option even though prices are high. If we continue to fall into depression people won't have money to buy houses, many will decide to rent and wait it out, which is why demand for small inexpensive places to live will remain high.
I agree with you sir, this mindset will surely help you give a solid foundation on how to keep on looking for something for extra money. We did invest in rental business and it is surely a good way to provide us income monthly without working for 8hrs like our normal job. Plus, i believe also BTC and ETH is still the best way to invest your extra money as both have a solid fundamentals already.