Elemental humanoids

So a weird aspect of pre-5e D&D editions is that the taxonomy of elementals was pretty nonsensical. Azer, genies, salamanders, etc were not typed as elementals despite originating from the elemental planes. So this led to a number of attempts by third party products to introduce elemental humanoid equivalents.

The Slayer's Guide to Elementals introduced CR6 "higher elementals," described as "the sentient denizens of the Elemental planes, quite capable of building a civilization hidden from regular planar pathways." These included the gnomides of earth, royal salamanders of fire, sylphs of air, and undines of water.

Monster Encyclopaedia I introduced CR8 "emergents," described as "Not all elemental life is quite so simple – just as oozes and slimes give way to higher forms such as elves or humans, so too do primitive elemental forms lead to the rise of the higher elemental entities called emergents."

Legends & Lairs: Elemental Lore introduced CR11 "noble elementals," described as "Whereas normal elementals are the everyday inhabitants of the elemental planes, noble elementals consider themselves the more civilized elite." They held court on a demiplane at the center of the elemental planes called "Nexus."

Tome of Horrors 4 introduced CR20+ "elemental lords," described as "For every type of elemental, there is a ruler, a huge elemental of massive size and strength that holds dominion over its own kind. These rulers are often worshiped by elementals and some are even worshiped by cults on the Material Plane." The fire lord was Inder, the water lord was Lypso, the earth lord was Onyst, and the air lord was Susir.

In 4e, the elemental type was changed to an "origin" that could apply to beasts, humanoids, and so forth. In 5e, the nuance from 4e was discarded and all these elemental beasts and elemental humanoids are now simply typed as elementals. Hence, the emergent/higher/noble/lord elementals are no longer distinguished from azer, genies, salamanders, etc.

For example, I incorporated the royal salamanders in my post on salamanders. The gnomides could likewise be reflavored as earth-centric azer. I'd like to explore elemental humanoid races in future posts.