If you wish to do some teaching during your thesis, it’s possible!
See this page for general information and the application procedure at Université Paris Cité.
Information about teaching at Sorbonne Université are available here.
For PSL see this page. You can also have information from the direction of the Geoscience department
Information about IPGP and outreach at Palais de la Découverte ou La Villette… to be completed…