Think of it more as an a/b/o fic that happened to be Dramione than the other way around. I would recommend this fic to anyone who's looking for a shorter (170,000 w,) smut-filled fic to satisfy you after maybe a very depressing read. (Ex: I read this straight out of Isolation to make myself feel better.)

https://archiveofourown.org/works/15153092/chapters/35140268

Two amazing things, put together. Now, this is the first a/b/o thing I've read (ik the shame don't look at me,) and it's either your thing or it isn't.

I liked this one because it was very smutty, but I must say that the fic is definitely more heavily focused on the alpha/omega aspect than the usual Dramione obstacles, even though those are there. So if you like that stuff, this fic has a good tempo and great writing courtesy of @senlinyu!