If you could teleport anywhere, you could demonstrate the power to your region’s space agency and get them to build a pressurised container or suit that can go with you.
Teleport to the moon and grab some rocks for a billionaire to make some money, then teleport to Mars and repair the broken rover. Take whatever samples the space agency wants,or transport some materials there ready for the first settlers.
This is just the standard stuff. Once you start using your imagination, there’s not much of a limit :)