The listening of podcasts allows you to concentrate (especially in public transports) and to develop your understanding (thanks to the different accents) and your knowledge of the language.
It's also a possibility of big immersion if you do not live in France, and might help you to sound French.
For this selection, I voluntarily chose very diverse podcasts, and all of a high quality of realization. In brief, I love them all.
This list is intended for people who have an advanced level, but everybody can take advantage of it ;) I hope you'll enjoy them!
Please, tell me in the comments which one is your favorite!