You know you're not too far from Basin City and I understand there are a lot of nice bucks taken in that area if you can get landowner permission but I hear it's pretty easy to obtain seeing how there are a lot of orchard owners who hate deer.
My grandfather used to hunt on a mountain called Jump Off Joe outside of the Tri Cities but I have zero clue as to whether or not you can still hunt around there or if it's all covered with houses. I hear there are still some antelope transplants in that area.
Another idea is that you're not too far from Hanford and there are a lot of opportunities around there but you must check regulations obviously.
I wish I had more first hand experience to offer in the tri cities; I was born and raised there until I was eight but I've never hunted around there.