Dailies in Blade & Soul
This is my dailies that I can complete less than 4 hours for about 15g, and you can get handful of soulstones. I wish it will help you farm more BNS gold.
Mushin 5-8(use ticket) dailies
Misty Woods(this is still an okay method of getting soulstones, especially if your faction rank is low)
Necropolis, Lair of the Frozen Fang dailies
BSHarbor, BSChain, Naryu Lab dailies
Blue 50 dungeons, South Shiverstone dailies(variety of short kill quests that give 2g in 15 minutes)