Twin pusher Cozy or Velocity would work pretty well.  The big
disadvantage of twins is the large offset of the engines that
makes for uncontrollable engine out asymmetric trust under
slow/dirty conditions.  On a canard pusher, the prop disks would
be within a foot of each other since they're at the pointy end
of the fuselage instead of the widest point in the cabin.  Make
engine out situations manageable and you've eliminated the
greatest danger of cabin class twins.  Or better yet, design and
build a boomerang.
Just a theory .... Jim S.