Hmm I guess I'm wrong, or maybe Germany is just different. Do you know if that's reflected in the overall community including piracy? Do people in Germany not like Attack on Titan and One Piece?
The list is about what I'd expect with mostly shounen near the top but there is decent yaoi representation. Not a single what I would consider normal shoujo though.
Hm, it would be a hard guess but in my opinion, readers of Shounen likely read the manga online on some reader or website (at least comparatively more than Shoujo fans). As mentioned in the earlier post, One Piece is absolutely relevant, being the last one of the Big Three still ongoing. SnK is ok, as are other Shounen. Sword Art Online is weirdly popular, although it's hard to classify that as Shounen/Shoujo, it attracts a rather large female audience for some reason.
I wouldn't necessarily give an Amazon list too much weight. Bookstores here in Germany are everywhere and people like to buy there, especially because you can take a quick look into the manga you are buying. So the lists from publishers tend to be worth more. The good part about the Amazon bestseller list is that it includes Carlsen manga where I couldn't find any info from the publisher regarding sales.
How does your source compare with this: https://www.amazon.de/gp/bestsellers/books/698198
The list is about what I'd expect with mostly shounen near the top but there is decent yaoi representation. Not a single what I would consider normal shoujo though.
American: https://www.amazon.com/Best-Sellers-Kindle-Store-Manga/zgbs/...
I would say this more about reflects my guess. 30% for the DE site and 15% for the American one.