In which Library around Helsinki can I borrow fiction books in French?
(apart from Sello and the one in Pasila)
Here you have a link to a list of all fiction books in French in HelMet libraries around the capital region:
So, as you see there are quite a few libraries that harbour at least some kind of a collection of books in French.
If you would like to restrict the search to a given library, go to this page: http://luettelo.helmet.fi/search~S9/X . Type two asterisks (**) in the search field. Instead of Entire collection, choose Fiction. For material type, choose book and for language, French. Then choose the library you want and click Go!