I've never been much into the fanfic side of things either. A lot of it is just silly or embarrassing to me. I don't mind anything that is generally a canon extended universe type of fanfic but the whole shipping thing just doesn't jive with me.
I agree with your distaste for shipping (I've grown a few (or more) years past the desire for teen romance literature), and I can recommend Inverarity on the MNFF site, especially the Alexandra Quick novels (yes, they're that long). I find these to be engaging as well as internally cohesive and consistent. I can also recommend DobbyElfLord and arinus, but I only found them on fanfiction.net.
Seriously, MNFF has some good fanfic authors on the site, even if you're not into shipping. I agree that some of it is dreck, but there are a few beautiful pearls among them; I'm fairly certain I haven't found them all, and I haven't even named all the ones I like; these are ones whose handles have lodged in my mind for quick retrieval, that's all.
Can you provide the source for that?ASU Sun Devil Quidditch
On Pottermore: MidnightMoonstone15
, wielding a wand that's 10 and three-quarter inches, Fir, Unicorn core, Unyielding