First, I echo the suggestion to have a thorough look at Don's Airbrush website, massive amounts of info there. Next, I have no knowledge of your airbrush, (USA,) but if it functions at all for you it would be best to learn using it the best you can for experience. Then you'd have some knowledge, to help you decide what type/brand of AB you would want to settle down with.
There are plenty of very expensive AB's out there, as well as many quite reasonable ones. High cost does not neccessarily result in better performance, what will be most important is matching the right AB to your needs. Comfortable to hold, easy and reliable to use, quick and easy to clean thoroughly after use will be importan't features.
It's likely that you can readily find an adaptor that will allow any AB to be mated to your compressor. Try shops that specialize in air tools, air hoses and compressors, they're normally well stocked with fittings. I find it easier and faster to lug the AB and compressor air outlet along, so they can see first hand what is needed to make it useable.
When I sized them up at home, then tried to figure out how I could make it all work, I bought TOO much stuff and ended up with an awkward Frankenstein looking outfit.
Good spraying.
Patrick