There a lot of CJ's products which you can promote at Facebook. You need to research and test them yourself.
Anything dating, weightloss and money typically does well for facebook ads. You have to think about the FB audience and what they are doing on the site. Everyone wants to make money, hook-up or lose weight.
You can literally make any product on cj work on facebook, just put the product in question into a real world type situation.
The Obituary House You need first to research who your followers are and what topics they like most when you interact with them