Yard waste can be a variety of organic materials.
Tree trimming waste, grass clippings, garden organic waste, scrap fencing, field stone.
If you have large natural stones on your property some landscapers will actually pay for this material to be used in retaining walls and landscaping.
Branches and waste wood can be recycled
Scrap chain link and metal fencing can be recycled for steel
Grass clippings and organic garden waste are all materials that can be easily composted for fertilizer. This may not be very profitable unless you have a source that generates a lot of this material, and you have to have sufficient space to do it.
There is a big movement in this country to use organic fertilizers and someone with initiative could make a lot of money selling natural compost.
Start a worm farm makes some tea and some money