Honestly.. 6x9 cameras are just not what anyone would consider compact.
Consider that a normal lens is 105mm. That is quite a long length. Not something that fits in a pocket.
Any 6x9 camera is going to be much larger than a hasselblad or Rolleiflex.
I have a century graphic. The lenses are very compact.. so as a kit, it makes a very compact package. And not very heavy. But then I moved up to a 4x5, which is a bit larger but I find it much easier to deal with 4x5 film than curly 120 film.
Really, if you want compact medium format, go with 645. The quality is fantastic. The film is held much flatter, you get twice as many exposures, and the lenses on the mamiya, Pentax, Fuji, and contax cameras are modern marvels.