Buyer's Guide To Airbrush Paints - Everything Airbrush
How to Thin Acrylic Paint for an Airbrush (Tips and Guide) - Tangible Day
Amazon.com: U.S. Art Supply 4-Ounce Pint Airbrush Thinner for Reducing Airbrush Paint for All Acrylic Paints - Extender Base, Reducer to Thin Colors Improve Flow - Works for Thinning Acrylic Pouring Paint :
Airbrush paint thinning chart for those interested : r/minipainting