2563 and 2565 for Fire if you’re only interested in nearby calls, it just depends on who is first due. You’re not going to hear every call for CCFD so you might as well scan both groups. As much as possible is done on the MDT. Most of the traffic on the air is “We’re here at the casino/hotel and there’s no security waiting for us. Can you call them?” and “We requested Metro an hour ago. Can we get an update on Metro?”
Not as familiar with NHP ops but you might as well scan 737-744 and figure it out.