Foundation is as much about finish and feel as shade. Sheer tints, natural foundations and fuller-coverage formulas can all work; the right choice depends on the result you want.
A thoughtful approach
Test shades along the jaw in natural light when possible and allow the product to settle. Try a small amount across different areas of your face to see how it looks and feels throughout the day.
Make it your own
Undertone descriptions can be a useful starting point, but they are not a rule. If you are between shades, try comparing two rather than relying on a label alone.