The index that lists magazine articles according to subject is the Readers' Guide.
The Readers' Guide has been published since 1901 by The H.W. Wilson Company. It is used in public and academic reference libraries alike throughout the United States.
Safe is the best option but it could also be wary or even rash as well but it's more likely to be safe and if that's not the correct word choice then it's a safe bet wary is the correct possible alternative hope this helps you out!
