With over 30,000 towns in France, the odds of our having another forum member in any one specific town might be a little slim.

For apartment rentals, try checking the online site for a publication called "Particuliers à particuliers" - it's a want ad publication reserved for buying, selling and renting property. You need to know the departement number for the town you're interested in - but after that you'll get some idea of rents.

PaP is for landlords who want to rent directly, with no agency fees. Figure one to two months' rent for the agent if you use one.
Cheers,
Bev