Firstly, I'm sorry, that was a horridly awkward opening! Other than that, I can totally get behind non-canon ships (the only canon one I'm really interested in playing is Dumbledore/Grindelwald). I checked your journal, and as far as for the ones you've mentioned there, I'm rather interested in the Draco/Ron one, either of the Marcus pairings (as both Oliver and Perce are actually on my list of Characters I Want To Play, and there was a time when both of those pairings actually were my OTPs), or some sort of femme line. I'm not completely sure on Pansy/Ginny, though, as I've never actually even thought of trying a Gin.
As far as other things go, I could also do MWPP, Trio, Postwarts, Next-gen, Riddle and AU, with something of a preference for minor characters (particularly DEs and Slytherins), though I just realised that I would be willing to try almost anyone in the series (with the exception of Sirius, because I'm absolutely bollocks at him). Sorry, again. That turned out to be a bit of a tl;dr.