hiswasburgundy asked me over on tumblr for some trope-y McShep fic. Rather than rec'ing a few and moving on, I decided to recommend fic for every category listed on fanlore. Not every category was filled and some only have one or two fics. I tried not to repeat any fics, though some fit into more than one category.
This list is by no means comprehensive. Feel free to leave a comment with fics if you want to add to a category :)