I guess you should look for 🔰 Beginner Build Compendium - 108 guides for AoM & FG expansions that have easy Lokarr fights (can tank Lokarr). The one from here looks nice:
[1.2.1.5] Beginner Primal Strike Vindicator - Unleash the Thunderbuss - SR and Lokarr viable
My Phys EoR Beginner dude could tank too easily but this was some time ago, so probably no Sunder