These are great: cities report emergency, fire, and natural disaster events in the same database.
Dallas
https://www.dallaspdlive.com/
https://dallascityhall.com/departments/fire-rescue/Pages/active-incidents.aspx
Austin
https://www.argusalert.com/
https://data.austintexas.gov/stories/s/Real-Time-Fire-Incidents/dr26-vqib/
Houston
https://cohweb.houstontx.gov/ActiveIncidents/Combined.aspx
San Antonio
https://webapp3.sanantonio.gov/activefire/Fire.aspx
https://www.sa.gov/Directory/Departments/SAFD/About/Divisions/PIO/Active-Fires