Places in the NW to book with my friends?

I want to book a space for a games night with me and my group of 45. But whenever I google anything about booking spaces, it's either HUGE banquet halls or office spaces. I can't find anything that is for a small-ish group. Only huge or very small. Does anyone know anywhere I can book a space for 45ish people? Ideally on the cheaper side but not necessary. I really only need tables and chairs, I can supply everything else. Thanks in advance!