I noticed that there is a huge number of elven subtipes in most settings - High Elves, Wood Elves, Dark Elves, Solar Elves, Lunar Elves, etc. Meanwhile, there's a dearth of dwarven subtipes - you're lucky if you get Duergars of Chaos Dwarves. Let's try to rectify this by coming up with original subtypes of dwarves.
>Sea Dwarves
As there are numerous mountain ranges on the bottom of the sea, it's only natural to expect that there are also dwarves there. Originally exiled from their homes on the dry land, they came across seamountains in submarines and built magnificent domed cities there. Most of them spend their entire lives on the seafloor, mining its vast untapped treasures. They extensively use corals in decoration and carry harpoon launchers for self defence.
>Sky Dwarves
Without a mountain to call home, the Sky Dwarves are the nomads of their race. Their clans live in fleets of gigantic zeppelins, each one of them carrying a platform comparable in size to a city. As young Sky Dwarves learn to walk, they also begin learning how to use a jetpack, since it's a much more convenient means of transportation in the sky than just their two feet. They travel around the world looking for invitations by the ground kings to develop mines for them. While their contracts demand a third of the wealth they manage to unearth, their services are highly sought after.
>Abyssal Dwarves
The stories of dwarves who accidentally dig into a demon tomb and lose their kingdoms as a result are common, but the ancestors of the Abyssal Dwarves are uniquely unlucky. In their avarice they dug into the earth's bowels until they reached layers inhabited by indescribable creatures who came into the world aeons ago. Awoken from their slumber, these elder beings enslaved the intruders and twisted their forms to better suit their tastes. Mutated beyond all recognition, the Abyssal Dwarves, as they became known, dwell in the deepest dungeons, only leaving them to do bidding of their dark masters.