There's really very little beyond people actively criticising H/W (usually with a lack of logic that would make Inspector Hopkins roll his eyes and groan.) I have a whole tag on my LJ dedicated to particularly painful 'arguments' against HW, kept locked to spare blushes. ;) Of non-fiction writings that genuinely consider queer interpretations ... well, I doubt they would fill a shelf, but I would be glad to contribute the few that I know of. Ditto other lists that might be useful: I have a list from a while ago with H/W and related fan fiction sorted by canonical reference, so I should really dig that out. I had abandoned it as impossible to update, but the fact that it's pre-movie-boom might have its uses. Likely others among us have similar hordes of interest to fan studies types. TBH, Holmes's contribution to fandom could be someone's life's work in itself, considering the existence of crossover crackfic dating from 1897. :)

Hmm, time for a pearoast of 'vintage Holmes fan texts at the Internet Archive', methinks :D