Gold farming? ok there is much to do if you wanna farm gold but if you have the patience to get enough gold to get the job done..
1-Most fun way (or might not be very fun since you might get owned a lot if your gear aren't high enough *cough*) are battle ground skirmishes and through battle ground emblems you can get gold symbol item thingies that give gold from the battle ground NPC and same with goblin ball which gives the medal currency thing with which you can buy symbol of gold as well which gives more gold if you can actually play goblin ball

or else some people will start flaming at you.
2-Another way is astrals though astrals now are kinda annoying if you're still in rep blues or wellebelle greens and sailing to astral needs a ship at least 10th generation now.
3-Third way is through alchemy by farming amalgams through alchemy quest and that was my favorite method to get gold and you could get gold very fast through this method but well you need much patience like really much patience since after doing it like 2-5 times you'll feel you wanna suicide unless you're on drugs or a very very calm patient person
4-Fourth method is through maze and people will try to pick higher geared players for maze since it's not that easy and it has certain times so yea it can get annoying to find a good group for it which will agree to pick you with them and actually wouldn't fail and waste your time at the end.
5-Finally,by farming mobs.I haven't tried the new KOE but when I wanted to farm mobs for gold,I farmed specific mobs and they're the werebears at Plagot ruins in Umoir or the ghost demons there too..Werebear drops were profitable so try farming there for around an hour or so and try yourself unless KOE is better now but I remember farming like 1 hr there would get you around 1.5k-4k gold and there are also the squirrel mobs near the hideout in Umoir which drop nuts in great amounts and plenty of them spawn at same time but squirrels is a crowded farming spot so I prefer farming werebears..Again I don't know how KOE drops are now but werebear drops were far better back then and I tried both back then and let me tell you a little trick,you can get cartographer addon which can tell you if a crown is nearby and simply start searching for Umoir crowns at a time when server is least crowded.
I hope this information help but I know nothing would help as much as great patience to farm in this game.
If you're farming for pat 5 and runes and some other CS content then I'd say go for amalgam quests and mazes,IMO they're the most profitable methods but if you need gold to gear up faster then go for battle ground and goblin ball and free mob farming.
Good luck!