Ohvist

Personally, I want a Gilnean Stagecoach more than a Goblin Hotrod: specifically, I want to have the Stagecoach be a 10-Seater beauty that is Rostrum Customizable that would allow Players to modify everything from the Luggage Rack, Windows, Lanterns, Wheels, Siding, Roofing, and best of all: the Harness: which'd allow Players to select which of their Mounts to pull the Stagecoach for them, with limitations being that the Mounts can't be "Non-Walking" Mounts (No Pandaren Phoenixes, Parrots, Cloudserpents, etc.) And that the Mounts need to be "Living Creatures" (No Motorcycles, Felsteel Annihilators, Airships, Magic Carpets, Broomsticks, etc. With the exception being Gnome Mechanostriders and Undead Skeletal Horses). Aside from that: anything goes so long as the Mount is in a particular Size Classification for the Harness's 3 customization options.

Sturdy Harness: Lets Players hitch 4 "Small Mounts" (Standard Horses, Wolves, Raptors, Unicorns, Vorquins, Nightsabers, Hawkstriders, Talbuks, Camels, Alpacas, etc.)

Reinforced Harness: Lets Players hitch 2 "Medium Mounts" (Mushans, Yaks, Draenor Riverbeasts, Elekks, Boars, Direhorns, Kodos, Rams, etc.)

Industrial Harness: Lets Players hitch 1 "Large Mount" ("Long Bois", [Ironhoof Destroyer], Corehounds, [Taivan], [Magmashell], Ohn'ahran Mammoths, Gronnlings, etc.)

What more? The Stagecoach would also come with it's own Follower System called "Caravanners" (which has no Mission Table attached to it, and that the Caravanners are all Account Bound), which allows Players to load up their Stagecoach with 9 other NPCs that'll offer unique passives, vendoring, or combat abilities when they're assigned to your Stagecoach. Things like Increased Run/Mount Speed at Nighttime, being able to Root Enemies for 20 seconds that try to run away from you at low health, or just playing a Zones' music with a different instrument. You could even assign your Mount NPCs as Caravanners, meaning you don't need to swap to use their Features anymore

Part 2 of the Archaeology Dig Site types and Rare/Epics that one could have gotten from them.

The War Within:

Earthen:

[Generals' Rebuilt Terracotta Ramolith] (2-Seater Ramolith Ground Mount)

[Ensemble: Thraegar Thanes' Coronation Set] (Cosmetic Shoulders, Helmet, Belt, Cloak, One-Handed Mace, Two-Handed Axe, Staff and Shield with a "Diamond" appearance to them)

[Uncursed Flesh] (Human Customization Option to grant Humans with Stone/Metallic Appearaces)

Kobolds:

[Red Wax Candle Battle Pet]

[Rebuilt Kobold Cart] (Rostrum-Customizable Kobold Cart Ground Mount that lets you assign one of your Utility Mount NPCs to ride it with you and assign one "Small" Ground Mount to pull it: Horse, Wolf, Hawkstrider, Raptor, Ram, etc.)

Big Wax-Bearers' Bag (Cosmetic Cloak that looks like a Kobold Backpack with unlit candlesticks sticking out of it)

Kaheti:

[Ensemble: Anub'Arak's Hatchling Raptorials] (Warglaive and Fist Weapon Set)

[Personalized Shadecaster] (Similar to "Warning Signs" Toys which lets Players setup a Shadecaster that'll display their character which the Player can then select which /Emote for its' animation)

[Princess Neferess' Distinguished Palanquin] (3-Seater Rostrum-Customizable Nerubian Skittershaw Ground Mount that lets you modify its' Harness to allow 2 Ground Mounts to pull it in-tandem. Customizations can be found throughout Azj-Kahet, City of Threads, City of Echoes, and any Non-LFR version of Nerub'ar Palace after acquiring this Mount)

I have here with me a list of Archaeology Dig Site types and the Rare/Epics that one could have gotten from them. This'll be split into two parts due to word count.

Dragonflight:

Primalists:

[Raiments of the Acoustic Flight] (Cosmetic Robes, Tunic, Pants, Shoes, Hood, and Shoulders with a "Soundwave" effect on them)

[Bones of Zorix] (Skeletal Proto-Drake Dragonflying Mount)

Maruuk Centaur Clans:

[Tsegzaya's Reliable Quiver] (Cosmetic Cloak that looks like an Arrow Quiver)

[Tracker Ganup] (Ghostly Bakaar Ground Mount roughly the same size as a normal Wolf Mount)

[Ukhel Khan's Greatstaff] (Staff and Polearm Weapon Set)

Djaradin:

[Ossified Hunting Party Magmammoth] (5-Seater Taxi Magmammoth Ground Mount)

[Ensemble: Ceremonial Dragonskull Armaments] (Cosmetic Helm, Chestpiece, Staff, Polearm, One-Handed Axe, and Shield with a "Molten" effect on them)

...Continuing with more Races that could join the Alliance or Horde, we have the Vrykul: a race of Giant Warriors native to the frozen continent of Northrend who are the progenitors of Humanity. Their culture prides itself on their brutality and fighting ability, traits that have been passed down to Humans in the time after Humans were forced to leave for their safety. The Winterskorn Vrykul: where the majority of Humanity can trace its roots to were led by King Ymiron, who due to thinking that their Titans and the Titan Keepers had abandoned them after The Curse of Flesh had ordered the Winterskorn to kill off the diminutive Human runts that they were giving birth to: not all Vrykul had agreed to this, and had sent their children south into what would become Lordaeron to be safe with the Titankeeper Tyr. Meanwhile King Ymiron would butcher the few remaining Humans on Northrend along with the parents that refused his orders, before sending them into a hibernation cycle to find a way to stop making runty Human babies (it wouldn't work).

If any faction that the Vrykul would join, it would more than likely be The Horde due to how the Vrykuls' beliefs and practices of "Strength and Valor" resonate strongly with that of the Orcs "Strength and Honor", and if there is one clan that thud union would be made possible: it'd likely be the Jandvik, a Clan of Vrykul who live to the east of Suramar City on the Broken Isles. Unlike with the Winterskorn, the Jandvik haven't been deeply affected by The Curse of Flesh in that they give birth to regular Vrykul kids, and that due to the actions of Horde Adventurers in pushing back Naga attacks; Horde Players are the new Jarls of the Jandvik, meaning I'd they wanted to: we could have had Playable Vrykul for the Horde during Battle for Azeroth.

There's also the Arakkoa: the Raven-like Birdfolk also native to Draenor and until the arrival of the Draenei, the Arakkoa were seen as one of the most Technologically-advanced civilizations on the planet: where everyone else was stuck using primitive clubs and spears, the Arakkoa had Solar-Operated Robots and Heat Rays. The Arakkoa were also one of the most magically-gifted on the planet due to them accidentally being the ones to train the Ogres how to use Magic in the first place. If there's any faction that the Arakkoa would gravitate towards: it would have to be the Alliance. The Arakkoa were a heavily-persecuted people on Draenor during and before the time of The Old Horde: where two of the various Orc Clans known as "The Bleeding Hollow" and "The Shattered Hand" had regularly butchered them and invaded their settlements regularly. Meanwhile during The Second War when the League of Arathor managed to push Ner'zhul back into the Dark Portal and cross through it to invade Draenor: the few surviving Arakkoa at that time would send Spies, Saboteurs, and Field Guides to help out Alleria Windrunner and Turalyon in fighting the Horde. On top of this, there's also the Arakkoa from Alternate Draenor, who unlike the modern day ones of Outland: haven't lost their ability to fly, and due to the events of Battle for Azeroth are likely fighting against The Lightbound: the Draenei Civilization of Alt!Draenor who unlike in the Main timeline didn't fall; and thanks in-part to the events of Warlords of Draenor where During the midst of the campaign against The Iron Horde Prophet Velen died (who knew how advanced and expansionist the Draenei were that the only thing keeping them from completely taking full control over the world was their collective faith in Velens' leadership), and both the Alliance and Horde managing to defeat and dismantling powerful Factions leading to a power vacuum. Bronze Dragonflight Time Travel would lijely bring the Arakkoa to Azeroth.