Given the choice of the "we", I'm assuming this isn't some unexpected gift and recommend just trying petfinder, looking at shelter's websites directly. A lot of them list with petfinder.

I got my idiot cat from Providence Animal Rescue league but there's tons of great shelters. Kittens are usually in higher demand than older cats. If you look at PARL, I'd recommend Business Man. I like his vibe. If my existing idiot cat could possibly tolerate it, I'd bring him home right now.