Hey there.
So i found new grinding spot at jade forest when i leveling my alt.
Mobs named 'Gormali Slaver' Respawn rate is pretty fast. And if you are in crowded server like me, this spot is awesome.
Mob link: Gormali Slaver - NPC - World of Warcraft
Map link: https://i.imgur.com/x26cj3r.jpg