A free mod for Stardew Valley, by TrentXV.
In this mod, you will find:
Ducks: They are bad for two reasons. First, they lay eggs every other day and, second, they have a low value.
Goats: They are good for cheese, but not as good as the best cheese. With this mod, you will be able to get goat milk cheese and get a lot of money from it.
Dinosaurs: They are simply terrible. Each dinosaur has its best case scenario and the worst case scenario and, with this mod, you will be able to get the best and worst case scenario.
Rabbits: They are simply great. You will get a lot of money from them and they are very easy to obtain.
The Animal Rebalance mod is a simple buff to the animals and it will not affect products produced before the mod is installed.