Zeny in new world maps is more easy then mid guard even for low rate servers as Few Monsters drop quite costly items very frequently.
If you want to make like 1 mil in 10-15 mins Take a ranger and equip it with wind arrows.
Go to Brasillis Dungeon 2. Here Hunt for Piranha and Iara. Both will die Mostly in One Double Strafe Depending on your equips
Piranha Drops Fishermen's dagger which can be sold to npc @10k
and Iara Drops Witherless rose and crystal mirror both can be sold to NPC at high prices
The Basic trick to get zeny fast will be Overcharging the items using a merchant
BE CAREFUL while Hunting in this Map as there is a MVP named Biotata here.
this mvp is Fire Type and has Headless Mules as slaves.
those mules also have high chances of dropping Full Plate.
Note:- both the monsters drop one item each which can be vended at very high prices!!!!!!!!!
I will Update More places as i Find .