Kobold

Kobolds are small, lizard- or dragon-like humanoids who make up for their physical frailty with numbers and scrappy ingenuity, especially with regard to traps, improvised weapons, and tunneling.

Tal'Dorei
There are scattered tribes of kobolds in Tal'Dorei's Cliffkeep Mountains and in the Stormcrest Mountains' Ashen Gorge where once they served Thordak. As of 812 PD, the Tinysoot tribe's leader, Yabber Tinysoot XIV, held the key to Thordak's deepest treasure vault.

Marquet
Just as he had many kobolds serving him in Tal'Dorei, Thordak had feral armies of kobold followers when he ruled over the Scaldwind Sands in Marquet centuries earlier.

Wildemount
Kobolds live differently in different parts of Wildemount. In Asarius, City of Beasts, kobolds get by in a relatively civilized manner, like those who sell potions as Madam Musk. In underground tunnels beneath the Ashkeeper Peaks, a colony of kobolds (including Spurt, Bex, and Sivel in 835 PD) carves out a meager life. In Blightshore, a clan of grey-skinned kobolds called the Fangs of the Worm, under the maddening sway of Quajath, uses its mechanical ingenuity to survive among the jagged obsidian of the Ebonglass Massif.

Elemental Plane of Fire
Some kobold servants are sold in the slave market in the City of Brass.

Trivia

 * Matt ran a one-shot set in the Warcraft universe entitled,, that naturally featured a number of kobolds.