Is being a Slave-dealer like...the most lucrative option?
There are 5 ways for Money making.
1) Slavery: Get bondage applier kink to love, free slavery enchantment and you can start using their own itens to slave people, mythical races (Dragon, Gryphon, Unicorn, Alicorn) are the most profittable to sell so ideally you have a good stock of them, i for one reccomend breeding and then selling your own kids, high obedience makes them more profittable so send them to the dungeon and give tatoos for subby kinks.
2) Lactation: Lactation with pyscho-addictive-strong alchool milk with another taste tends to sell quite well, cum and girlcum apply too.
3) Potion Selling: Get the "Water skill-tree" since it will make it free to do fluid related enchaments witout having to use arcane essence, then start spamming for more size or production, each potion sells for like 2,6 each.
4) Breeding: Save scum a bit on the breeder and have high virility, start breeding to gain up to like 30k
5) Slave Jobs: force em to work and get paid for it.