There's no working streams for the Fire and EMS agencies here in the Las Vegas area at this time that I know of, if they're not showing up on Broadcastify then they generally don't exist, sadly. I was thinking about setting up a spare laptop with OP25 just to pull Fire and EMS traffic specifically for a dedicated feed but I have plans to move to Missouri here that are taking precedence over "the fun stuff" of late so unfortunately I won't be able to make that a reality.
Maybe someone out there will make such a thing happen, the LVMPD and NLVPD traffic are fine but Fire and EMS traffic is interesting too and there are those of us that wouldn't mind having a decent reliable stream to monitor from time to time.