Try here first:
There's more to picking a binding than just wanting a "freestyle" binding. You need to consider your necessary DIN setting (say you ride at a 7...you'll want a binding that 7 is at or near the middle of their DIN range...so an 18 DIN binding is out of the question, but if you ride at a 10, then a 12 DIN binding is probably not enough binding for you).
There are TONS of bindings out there that can be considered freestyle bindings, so you'll need to consider DIN range, durability, weight, ease of entry/release, brake style, forward pressure adjustment, and other factors like that.
Once you go through that thread, if you still have questions, come back here and ask those instead of such a vague question.