I recently tried a new brand, Mission Models Paint. I was very impressed with the performance using an air brush (Iwata CP-CS).
In the past I have used floquil, tamiya, and model master with good results using Paasche and Aztek airbrushes. I tried the Model Expo paints and was not impressed at all.
The Mission Models paints are water-based acrylics, non-toxic and odorless. The paints contain high-quality organic pigments with no additives. This results in infinite shelf life as there is no possibility of hardening or separation of pigment and medium in the bottle. The paint bottles (1oz) are sealed and include mixing ball which helps to thoroughly mix the paint before use. The paint is airbrush ready from the bottle, but it could also be thinned with MMP thinner (about 20-30%).
Since they are new, they are still bringing colors to the marketplace, so they may not have every color you want at this time.
Do an internet search on "mission models paint review" and you can see what others think of this paint.
I have no affiliation with MMP, just a happy user wanting to spread the word so other can consider utilizing their product.