To understand how these products work, you have to go through 200+ pages long prospectus. To get all the nuances regarding so-called "acceleration events", etc. Who does that? Wast majority of people trade these instruments blindly, they see a trend and jump onboard to join the ride. The fact...
In my experience, the more complex an indicator is, the less likely it is to work. Systems based on simple indicators can be very robust and do work. Look at 2-period RSI for example.
You can go to Barchart website, then click Options - Highest Implied Volatility.
This can give you some candidates to look for with inflated premium.
Just make sure it is not inflated due to upcoming earnings announcement.