Hi,
The only problem with searching is that you can miss conversations. If you have a modern day scanner there should be plenty of room to put in 48 well established frequencies.
9 out of 10 times the tatical, command, air to ground, and logistics will be these frequencies used at a type I incident.
The air to air changes frequently and sometimes others are ordered up to avoid interference.
The "Guard" and "Flight Following" are nationwide. These are great to monitor to learn new frequencies for a fire from the pilots.
Another resource is the "Mobilization Guide" for your area. Frequencies are located in ch.50 "directory" and sometimes ch.70 "equipment".