Thank you for attempting to show care for your group and honor the fact that people ought to be able to chose what they are exposed to. It feels terrible to invest time and effort into a book and then realize you can't finish it due to content. No one gets a gold star for being some uneffected hard nut of a person.

Probably your best bet is to look at a wide variety of reviews and see what themes pop up. But even then it depends on the perspective of the reviewer.

There's a show that's been getting lots of buzz and based on reviews I was excited to watch. What no one mentioned was that the entire first episode was on child abuse images 😱 I noped right out. Why did no one think to mention it?