Also look at MTL Attachments. I have one of their single lid grapples. Very well built at a competitive price.
One thing to look for in a grapple is whether the pivot points are greaseable. Some of the cheaper ones are not.
I like this type. Looks like it would be good for digging out small trees and rocks. I think you could grapple anything type 1 could. Negative is the smallest size weighs 500#.