My Semi-AFK Gold Making Method

Farming Essence of Water off Toxic Horrors in Felwood
or
Farming Essence of Air off Dust Stormers in Silithus

The Great thing about this is you get your character to auto-attack these elementals, alt-tab, watch Anime (Such as Domestic Girlfriend, Keijo, and Eromanga Sensei), and in about 10 seconds, come back to the game, loot, repeat.

I used this method to get my Epic mount on my Night Elf Hunter, while simultaneously satisfying my Anime desires.

Essence of Water sells for 7-9g on the AH, with a 7% drop rate.
Essence of Air sells for 18-20g on the AH with a 4% drop rate.

Wanted to let people know that there's a way to farm gold and watch anime at the same time.