First off, really enjoying what I’ve played thus far. I have a few ideas.
-Upgrade for the fishing shack - maybe give them a boat for wider range and increased inventory?
-Hog Farming - Historically relevant. Pigs are a highly utilizable source of food and hides. Also lard can be layered withing pottery and other items (meat and greens) for an effective preservative ( Either have them confined to a pen, or for more accuracy make a pig herder job. (They are natural foragers)
Horses - Countless applications. But mainly you can use them for draft animals in order to increase productivity of fields, hauling lumber and mineral materials, even an entertainment factor.
Sheep and Goats - Food and clothing source.
Musical instrument manufacture - Luxury good for later tiers. Positive effect on mood too!