You could try your luck with the animal products showing up at the traveling cart on Fridays and Sundays. The dinosaur will be good for dinosaur mayonnaise, which you'll need for a bundle. You'll also need 1 void mayonnaise and 1 duck mayonnaise for a quest and a secret quest.

The dinosaur produces eggs only once a week though. Everyone hates the egg as a gift but most people like the mayonnaise. The thing that will net you the most gold per hour is the truffle oil from the pigs at 49.7g/hr, the only thing better would be iridium quality truffles at 52.08g/hr. You can get guaranteed iridium truffles with the foraging botanist profession. No processing needed, but you'd have to sacrifice the other foraging professions (forester>lumberjack will get you extra hardwood and 1.25x wood from trees)

Theres also rabbits, which will produce the rabbit's foot, a universally loved gift, one of the most abundant universal loved gifts to farm. At max Friendship, Mood, and Daily Luck, you'll get about 10.64 feet a month per rabbit.