What kind of toys are actually safe for dogs?

I have always heard that rawhide is not good for dogs, as it can cause a blockage. No chicken bones, and no cooked bones. Today, I learned that rope toys and tennis balls are also considered dangerous. I just read a story by a woman who said that her dog swallowed a bit of string from a rope toy and ended up having to have part of its intestines removed.

What is actually safe to give them? My dog is not large, but she is a very destructive chewer. She doesn’t chew things that are not hers, but we go through dog toys very quickly. Stuffed animals don’t cut it, I need tough stuff that she can gnaw on.
I give raw bones, but, they are expensive…. is that the only real option for dogs to chew?