The Oregon D009/Large Husky mount is one of the most common ones, and I think "everyone" makes them - except Stihl of course.
The Oregon US Selector guide turns up one 30" Power Match Plus bar that will fit (300RNDD009), but the selection will probably be larger if you settle for 28 or 32".
I tried to post a link, but it didn't work this time for some reason... :umpkin: