I found a nice spot to AoE monkies in Krasarang. There are 3-5 spawns in which they come in groups of 10-20.
On average, I was getting:
5 Gold per pull,
1 green every other pull,
1-2 motes every other pull,
2-7 cloth per pull,
1-4 Plundered Treasures per pull (with the Greater Luck Potion).
Miscellaneous grey items and food.
The monkies are on a 5 minute-ish respawn, but there are enough packs to provide limited down time. Additionally, there are more monkies that spawn on the coast in groups of 4-5 that can be killed if you have to wait.
Also, these monkies are part of a daily (I'm not sure if it's daily or repeatable as I've only bothered doing it once) quest that starts from a horde vendor. You trade in commissions for the crab trap, and the quest requires you to kill the monkies.
Screenshots:
https://i.imgur.com/nyRd4.jpg
https://i.imgur.com/6TLfY.jpg
https://i.imgur.com/32WV6.jpg
https://i.imgur.com/iONJ8.jpg