fontinfo makes an overview over installed fonts on system where it is called. It is able to generate rendering info, language info, character set etc. for each font. Fontinfo can also integrate with package manager. From pages it generates, it is possible to directly install font packages or switch between default and system rendering of specimen and see differences.
Git Repository: fontinfo
Example of use: openSUSE's M17N:fonts overview
Petr Gajdos