There are lots of options. Whether you're starting with a weld-on or bolt-on, if you want something aggressive like Piranha or smooth, toothed, etc. I've made a couple of smooth edges and one toothbar. With the current state of my property and the potential tasks a smooth edge will do everything. If cleaning the fence row ever rises to the top of the list of things to do, maybe something like the Piranha will be the best option.