I'm doing updates of the Vulpine Tribe Disposition page, located here: https://belariath.com/forum/viewtopic.php?f=45&t=19505
And I've added some notable members of each tribe, that I can think of, and that I've found from looking through the vulpine bios.
Anyone who's a member of a vulpine tribe, can you get in touch with me, or post below so I can add your name to the page?