Cottagecore books for around ages 8-12.
The books are sorted into classics (the first 80ish books), then more recent/modern middle grade novels, loosely sorted into realistic then fantasy (mostly low fantasy, or just a sprinkle of magic in a real world setting), and then the last 20ish books are graphic novels (from Pilu of the Woods onwards).
I have not read all of these books (not even close), so I cannot be certain of how closely they fit the 'cottagecore' aesthetic, however this list is more for myself to use as a tbr of sorts, and so this list is based more on the more cottagecore-esque features I look for in stories, which these books seem to include - either from the cover and/or description of the book, or from what I've seen shared about them online.