I was going to go through my library to see what I have in that region and suggest a few, but I actually have a ton. (With the caveat that some books have only been graded by me and some are still tentative levels.) So I’ll just leave the filter link here, and if/when you have any time or inclination to look through, I can answer any questions about any particular books!
Short list of suggestions; these were really difficult to pick, because there are too many series I’d like to recommend, so I tried to grab stuff with specific “learning features”:
- 光が死んだ夏 | L26 (manga; billed as horror BL; 99% in 関西弁, so great for sampling that dialect)
- 椎名くんの鳥獣百科 | L26 (manga; good for picking up animal and university heirarchy vocab. For more animal vocab check out 天地創造デザイン部 | L24??, though it’s ungraded)
- ゆるキャン△ | L26 (manga; good for picking up outdoors, camping vocab)
- あなたも殺人犯になれる! | L27 (novel; author is known as a universally easy novel read, so nice to sample him if you haven’t yet)
- 魔入りました!入間くん | L28 (manga; comedy; has a wide range of speaking styles, grammar I seem to recall as being somewhat tricky in places)
- レバダン・希望の花 | L30 (manga; historical fiction, light BL; great for getting your formal language down pat, as well as a great crash course in vocab related to medieval/historical concepts)
The list is pretty heavy on manga there, and there’s plenty more I’d like to recommend. D: Hopefully I’ll see you over in the BL club for more targeted recs. (Apologies if you’ve read any of these suggestions already; I’m typing this list up in between work meetings.)
Yep, I definitely recommend leaning on the BL club; we’ve got a lot of really knowledgeable and passionate people who can definitely help!