The Netherlands and Belgian (Flanders) bookstores
Add bookstores from The Netherlands and Belgium (Flanders)
• Google Play
These stores only use country or locale flags to make a distinction between countries. Scraping results isn't any different.
Example: Kobo store "Dutch" branch: https://store.kobobooks.com/en-nl/ (or nl-nl)
Focus on these stores first but you should also considder to add (at a laterdate):
• bol.com; the largest online ebook retailer in The Netherlands (±80% market share)