Yes, I would say any oak trees are okay for beetles. Also, any hardwood substrate works fine. I don't know which beetle species you want to rear, but if it is Dynastes tityus, in your profile image, can be found in many different oak trees as well as many different hardwood species.
Ooh, thanks for the insight! Lucanus Elaphus. On a side note, what hardness of wood would be appropriate for them?