If you're above level 75, It's better to go looting in Xtractus Chemical Plant in Raven Ridge and sell it on Secronom.
My average net loot in money after looting the entire area of Xtractus is 400k+. That's just from looting the area inside the Chemical Plant. It's probably because of the event because you're 2x more likely to loot armor and weapons. (I scrap the weapons and armor and sell the miscellaneous in Marketplace)
Killing bosses every hour with other people can get you money too by scrapping.