if you merely want to make a buck from puts when things go south
A misunderstanding. Please let me try to clarify: I don't want to bet on the market crashing. Far too risky. While I see a crash quite likely history taught me that my psychology is not suitable for forecasting, that I have a very negative and sceptical bias and therefore will be mostly wrong in forecasting the mostly upwards direction of the market (Think: Jeremy Grantham).

Ideally it would be something that is wildly overpriced now
I tried that the last years several times with Tesla and SaaS stocks (not with a market crash in the back of my mind, just with seen those stocks, in isolation) --- and especially with Tesla I paid heavily! So much that I learned my lesson which is: I am no good on forecasting. But there is one exception:

you probably want an asset whose price does NOT tend to stay in such a narrow band!
That's actually exactly the beauty of Berkshire and the reason why all my Berkshire option trades did work perfectly. BECAUSE of that band being so reliable. All those trades I did without thinking about "The Market". It was only about Berkshire (And should the market crash indeed: As I am currently betting against Berkshire it would work to my advantage).

And regarding "narrow band": It's wide enough for me. Today I sold BRKB 12/20/2024 410 Puts for $12.20 which I bought on 16.July for $6.05. 102% is enough for me, I don't complain.