I use Floquil lacquers, MM enamels, Humbrol enamels, White Ensign enamels, And Tamiya and Gunze arylics.
#1 - Floquil lacquers: These can be found in the Model Railroad section of your hobby shop. They airbrush easily, and I usually get one-coat coverage. This is especially true with "Reefer White" and "Old Silver." I use the Old Silver as a base for natural metal finishes on aircraft. DO NOT use these on top of enamels or acrylics! Thin with either Floquil Airbrush Thinner or lacquer thinner. Cleans up with lacquer thinner. NOTE: Fumes can be toxic!
#2 - MM, Humbrol enamels: Easy to use, but better results by airbrushing, and an excellent range of colors. DO NOT use on top of acrylics, but may be used on top of lacquers or enamels of the same manufacturer. Thin with the manufacturer you're using thinner. Cleans up with thinner or lacquer thinner. NOTE: Fumes may be toxic.
#3 - Tamiya and Gunze acrylics: Good brush painting coverage, usually does not leave brush strokes. Thin with either mfgrs thinner. (The Tamiya thinner smells like alcohol - but haven't used alcohol to thin). Do not use lacquers or enamel on top of acrylics, but may be used on top of lacquers and enamels without problems. Thin with distilled water. Not toxic, although there is an odor that is not objectionable.
I have left out White Ensign enamels, as I just purchased them (the Japanese WWII colors), and have NOT tried to airbrush them. Have brush painted them, and they cover well without brush marks.
As an aside, I also make a paint chip card when I open a new paint. I take a 3 x 5 card, cut it in half width-wise so that I have two (2) 3 x 2 1/2 cards. Along the top, I write the Manufacturer, and the stock number; along the bottom I write the description (i.e. Red; Blue Angels Blue, etc) and the matching FS number. Then I put the color chips in numerical order (NOT FS number, but company stock number), put some double-stick tape on the back, and place it on a sheet of heavy paper, and then put them in a plastic document protector, and store in a notebook. I've completed all my MM paints, Floquil lacquers, and Tamiya and Gunze acrylics. I've got a lot of Humbrol left to do.
So, hope this helps.