Report to Ranger Captain Venn'ren at Falcon Watch in Hellfire Peninsula.
My people recently finished building Falcon Watch, a base of operations in the southwestern region of Hellfire Peninsula - beyond Hellfire Citadel. You are welcome there as an ally, [player].
If you're looking for work, go there and tell Ranger Captain Venn'ren that I sent you. He will see to it that you're given tasks worthy of someone of your caliber.