I am running multiple scanners; one on site 1 and one on site 2; and picking up all Fire TGs as shown in the DB. It's not obvious from the DB, but was stated here in this thread that the B groups are typically used by the city and are on site 1 whereas the A groups are typically used by the county (Sac Metro) and are on site 2.
Start by working in receiving the dispatch TGs; A1 & B1. They are also 'repeated' on VHF. Once you have those, getting the associated TGs should be a small issue.