Tame a bronto cause they’re easy, and use in forests to become the richest man with narcotics in the whole map, one swing and it gives you 2-3 stacks of narco berries!!! Then get a rex for obtaining meat to spoil.
If you are on Ragnarok head to the highlands and along the coast and you will find beached basilosaurus. Harvest them with a pick or hatchet to get hide, keratin, oil and LOTS of spoiled meat. Killing vultures in the desert also gives you a lot of spoiled meat.
-Tip- A good way to get a lot of narcotics is taming a herbivore of your choice that gathers a good amount of berries, then heading to areas where turkey vultures spawn. kill the vultures for a large amount of spoiled meat and boom a good way of getting narcotics if you don’t like waiting for meat to spoil