So I am wanting to do a Dragon character tank playthrough. I am not sure how to make a solid Tank in this game without it b oiling down to two hundred turns later and no change. I want to make sure I balance the items and companions out as best as I can. I am here looking for insight from the community who's spent a lot of time. I like to play the hardest difficulty, so I am trying to set it up with a Healer, Tank, Dps sort of deal. My prior build was a Kitsune Swordsman, lost my save data and thought I'd just start over with the new stuff coming out.
Ah, I've experimented with "dragon tank" a lot after playing Dragon Knight in ESO.
Put all your points into Strength, Toughness and Willpower. Heavy armor is a must, then either a sword and shield or two hander (either work). Play a Warrior, take the Tough Skin perk.
Get to Dracia as soon as you can. Not only for the dragonsblood to become a dragon, but for the Dragonscale from Melara/Gytha and Cloudforger from the Golem. If you don't want to two-hand, take Ashelander or Flametongue and your choice of a focus like Fire Jade or any shield. Other gear is up to you, try to get a solid mix of Attack Power and Spellpower. For example: Titanic Hat, Champion's Belt, Geomancer Bracers, Ouroboros Amulet.
For your At Will, Flamebrand is very thematic. Guarded Stance also works, though it's less exciting. Shielded Stance is strong, if you have a shield. You can also swap out for Thunderbrand or Frostwarden if you want to play a non-fire dragon. Earthward can work, but you'll need another way to manage aggro.
Any warrior Recharge skills work. Fireball or Flash Fire fit as a "dragon's breath" attack, but I find Fireball isn't very strong if you're not combing it with things like Grease. Searing Arc is good too. Shielding Smite is a good one for both flavor and effectiveness.
For your Encounter skill, I'd reccomend either Bull Rush, Rime Veil, War Banner or Flames Within if you're very confident in your ability to tank and want more damage. Tough Skin + Dragonscale armor will significantly reduce the burn damage of it.
Swap out fire abilities for either elemental attacks and weapons as you see fit if you're not specifically going for a fire dragon.
With this build, you'll deal a fair bit of damage and be pretty tanky. Bring any healer with you (Agni is very fitting, 'cause fire), none of them should struggle to keep you alive. Any dps works too.