Suggestion for My Land:
I think workers that you hire and keep on a payroll could be interesting. They would require a certain salary per month, but they would walk around collecting crops, mowing lawns if a lawnmower is nearby, selling fully grown animals, and cleaning up dead animals. They could also use a harvester and maybe increase the sales of nearby vending machines and pizza parlors. In the settings you could set the minimum value of an animal before its sold for maximum efficiency.