The most suitable mount and mounting position depends on the bag type and location. If you're looking to mount it in a gym, you may have beams from which you can hang nylon straps or dedicated swivel mounts. If you're looking to mount a bag at home or in a garage, you need to assess whether you have the space for a free-standing mount, or the right material in the wall or ceiling to take a swivel or ring mount.
Carefully consider how and where you can mount a bag, as when they are in full swing, they can easily rip out parts of a wall or ceiling if improperly mounted.