The dwarf gouramis I know are:
Flame--a pretty red/orange
Powder blue-- A pale blue, kind of washed out
Regular--kind of red and blue striped
Neon--like the regular but much more vivid
There are other gouramis that stay small, sunset thick lip, which is a yellow/orange mix (kind of fade into each other) and honey which is similar in color to the sunset. I'm not sure if these are true dwarfs or not.
I would only do one in a ten gallon tank. Sometimes (especially if you have only males, or a couple males with less females) they can fight with each other, so it's best to either have six or more to spread out the aggression, or just one. As far as what can go in with them, a small school of just about any schooler would do well. Or, you could do about three or four cory cats (try for the smaller kinds such as pandas), I'm not sure about staying with asian fish, but I"m sure there are some small schoolers from around there, I just am more familiar with the SA schoolers like tetras. (and actually, don't know a whole lot about the native areas of most fish, other than cichlids and such...) Ten gallons really isn't that big a tank, so you will need to make sure you are on top of your water changes etc. and have good filtration. But, gouramis don't like a lot of current so keep that in mind too. They can be a bit sensitive to water quality, so they are best added after the tank is up and running a while and has cycled.
I think barbs may be asian, if so, a school of cherry barbs (maybe two females and three males, so you'll get some good color in the males) would be nice. I'd stay away from the larger more aggressive barbs though.
Emily