Ahriman
Tyrant
But then things that effect "soldier" units (like the Zulu UA, particular promotions, the forge) are very narrow.This is why I call warriors/swords "soldier units" and spears/pikes "vanguard units." These terms are clear and precise. The combat class determines promotions (and building bonuses like the Stable), so they must be different combat classes, and we must have a different name for each combat class.
And the in-game UI talks about melee, not "soldier".
I think that land units should all be melee, gunpowder, siege, archer, mounted, or armor.