face-font-family-alternatives

face-font-family-alternatives is a variable defined in `faces.el'.
Its value is

(("Monospace" "courier" "fixed") ("courier" "CMU Typewriter Text" "fixed") ("Sans Serif" "helv" "helvetica" "arial" "fixed") ("helv" "helvetica" "arial" "fixed"))


Documentation:
Alist of alternative font family names.
Each element has the form (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...).
If fonts of family FAMILY can't be loaded, try ALTERNATIVE1, then
ALTERNATIVE2 etc.

You can customize this variable.