Old timers used to use a tire drag. Get 6 tires and bolt 3 of them together in a line. Use U bolts or else big thick washers and 3/8 bolts. Then add 2 more on the next layer, then the last one making a triangle shape. Then bolt on hooks or chain attachment points to the outside edges of the 3wide. That goes to the 3 pt arms. Just drag that around with the single tire farthest from the tractor and on looser soils it will smooth it out pretty well and it's about free to make.
For a couple hundred bucks you can get a chain harrow, also called a chain drag.
jb
For a couple hundred bucks you can get a chain harrow, also called a chain drag.
jb