Aureawolf

Probably the best place to go would be the Sith Academy. http://siubhan.com/sithacademy/ Its mostly comedy, but can also get very hot at times. It is Obi-Wan/Maul slash, but it takes a little while to get there. I would recommend reading any of the fics that are called "Life Lessons at the Sith Academy" by Siubhan. Those are kind of the canon of the universe, with all the other fics as little one-shots written by other authors. If you go to the "non-canon" section, at the very bottom is a link to Siubhan's more serious fanfics, which include quite a few Maul/Obi-Wan. Hope that helps!