X-link to the Kobo Deals thread if you read French-language books:
Major French publisher Bragelonne is once again running their GrosseOP sale, with a rotating daily selection of 100 sale titles (mostly standalone and 1st-in-series novels, but some non-fiction) for just €0.99/$1.99 CAD at multiple retailers.
They are DRM-free at least at Kobo, and possibly at other stores as well. The selection includes both native Francophone authors (many of them award-nominees) and translated works by well-known English and other-language authors across multiple genres. SF/fantasy is represented pretty generously in the sale, if you want to try picking up both contemporary and classic French sfnal works or practice by comparing familiar popular anglophone series.