I remember liking Duane’s approach whereby all the different sophont species were collectively referred to as the various “humanities”, iirc — the idea that being human had literally nothing to do with one’s biological species. One could take that as linguistic imperialism, but presumably in this case the various languages would all use a species-equivalent word literally translating as the vulcanities, the hortanities, etc. (Unless I’m massively misremembering, which is possible; it’s been decades.)