This is the only doujinshika I've seen so far whose work is quite definetely
SnapexHermione. She's done two books and one copybon, all with Snape and Hermione as the main characters, although the stories
are light and innocent. I think she's done doujinshi for some other series as well, or so her site indicates, but I've never
seen them. Her artstyle isn't to my usual taste, since I like things sleek and cool, but
it is in a way quite sweet, and Hermione in particular is depicted as exuberant while at the same time being shy. Her
stories have a definite SuneHa- slant, although Ron is also fond of Hermione.