While there are plenty of mods that add NEW villagers, I haven't seen very many adding to the existing ones so that's what this mod is. The goal is to add new trades to the existing villagers to make them more useful while keeping them somewhat balanced. Ideally, every profession would have some kind of trade that you would want. I am open to suggestions in the comments.
Here's every trade added by this mod currently:
Clerics:
-8 amethyst shards for 1 emerald (novice trade) | This trade was added to make it easier to level the cleric past novice and to give amethyst more use.
Farmers:
-6 honeycomb for 1 emerald (journeyman trade) | This trade was added to give honeycomb more use.
Leatherworkers:
-1 emerald for 2 rabbit hide (novice trade) | This trade was added to make it easier to get rabbit hide and to make it easier to level the leatherworker past novice.
Masons:
-20 blackstone for 1 emerald (apprentice trade) | This trade was added to make it easier to level the stone mason past journeyman as well as give blackstone another use.
-16 tuff for 1 emerald (journeyman trade) | This trade was added to give you something to do with tuff besides building and because the masons already buy andesite, granite, and diorite.
Fishermen:
-8 emeralds for 1 bucket of pufferfish (expert trade) | This trade was added to let you get live pufferfish a bit easier and to make the fisherman slightly more desirable.
Butchers:
-20 emeralds for 1 lead (master trade) | This trade was added to let you get leads without slime balls or a wandering trader and to make the butcher slightly more desirable.