For the American audience: Emmaus is the Goodwill for France.
[1]: https://www.emmaus-international.org/en/who-are-we/emmaus-ar...
Sort of related is one of my favorite things in NL: the “mini bibliotheek”, the free for all bookcases to share books (often placed in front of a house by the residents).
Here’s an example one: https://velsencityblog.nl/wp-content/uploads/2019/11/groot.j...