The Greek armoured skirmisher cavalry have the "Hetairoi" bit in their name though. The Tarentines are certainly not elite as in "best you can get", but in their case, I guess 'elite' should be taken to mean 'widely-sought-after'. So much so, that "Tarentine" became the name of their particular fighting style (going by what the historians on the team wrote about 'em, here); in any case for that reason you'll find them available as mercs in the Levant as well. Hetairoi Aspidophoroi are elite in the other sense, as in "best you can get".
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