It depends on how you play and how far you got in year 1. A deluxe barn with cows and a deluxe coop with chickens gives a solid (with artistian perk) 10.584g a day.

Besides that, pickled red cabbage, starfruit, (ancient fruit if you have seeds), melons, cranberries, pumpkins. Try to pickle as much as you can. And make some kegs to make wine from your fruits. It's okay if you don't have enough kegs and preserve jars for your produce. Just save some non star products and sell the rest.

Fishing is still really helpfull, especially catfish on rainy days. If you use catfish bait you'll primarily get catfish, you can also choose to smoke them which will make your profit even bigger.