Hey there!
Generally a pole is mounted onto (or into!) a joist- that is, the large beam in your ceiling that holds your ceiling up. Be it an Xpole or Lil Mynx or Platinum stages, you'll be looking for one of those. You can often use a studfinder from the hardware store to find them in your ceiling.
And I'm pretty sure that, if you're able to walk on your floor without falling through, it'll support your pole.
I will also point out that, for Lil Mynx (like the studio veena pole) you are putting a rather large screw into that joist, so that you can mount your pole on that. Generally it's quite secure, but if your joists are made of metal (like my last home) it doesn't work really well. I would suggest putting an extra piece of wood between the mount and your ceiling. The mount also has the occasional habit of chewing through drywall, because of the twist and pressure that pole use comes with. It's nothing that a bit of spackle won't fix, though!