Basically any of the legendaries... (especially Lugia), you can get a dragon-dancing Salemence straight off (saves breeding), Duking for a wild Pokemon will trade a dragon-dancing AND Outraging Larvitar as well, which is quite good.
The tri-attack Togepi IMO is good - instead of Thunder-wave, you can have an attacking stab move that will more than half the time cause a status change anyway, with Serene Grace.
Others that 'might' be useful (not quite sure on these myself) - Heal Belling Lapras/Dragonite, Tangela with Morning Sun, possible the 'Charm' Pokemon (heard Golduck ain't bad with it), Recovering Sableye (UU but useful), some of the Baton Passes have potential (Hypno, Lunotone..), and if you don't want the tri-attacking Togepi, there's always the Punching and Cross-choping Elekid...
BTW, once had offered the recovering Sableye on a forum, and ended up trading it for a nice deal within 10 minutes...
Hope that helped.