I hope you like some of these....and that I didn't include plot lines that you don't care for....
Vindico Atrum by FirePhoenix8 at fanfiction.net http://www.fanfiction.net/s/4582846/1/Vindico_Atrum
Harry/Tom....very sexy....dark humor and Durmstrang goodness.
Founder's Keeper by trillium248 on fanfiction http://www.fanfiction.net/s/4484950/1/Founders_Keeper
Harry/Salazar...clever plot and timetravel surprises
Disenchanted by Cluegirl at skyehawke http://archive.skyehawke.com/story.php?no=...7&chapter=1
Harry / Severus...not long but well written and cool
And I know you said that you don't like Harry/Draco but this completed series has some Severus thrown in as well and definitely got the dom/sub thing going on. Indago by LdDurham at skyehawke
http://archive.skyehawke.com/story.php?no=8094&chapter=1
Basically anything by Icarus is like waking up to the winning lottery ticket, but here are my favorites, and they are all part of the same universe created in.....(!!) Primer to the Dark Arts http://www.fanfiction.net/s/1069913/1/Prim...o_the_Dark_Arts
Harry / Severus and so well written that you ache
Cursed Artifacts for Sale http://www.fanfiction.net/s/1753258/1/Curs...efacts_For_Sale
Drunken Domesticity on fanfiction.net http://www.fanfiction.net/s/1244318/1/Drunken_Domesticity
Harry / Severus : they fight and makeup but in such a cannon, snarky, AWESOME way that you shiver
A Scandalous Interview http://www.fanfiction.net/s/1459375/1/A_Scandalous_Interview
And maybe you'll enjoy some of the fics written by DementorDelta on skyehawke http://archive.skyehawke.com/authors.php?no=95
Happy Reading!
~Chanel