The best alternatives to Wildfire Alerts are ALMA, Chestnut, and Hawknet. If these 3 options don't work for you, we've listed a few more alternatives below.
Chestnut provides a free wildfire risk analysis for any address in California. The underlying risk map we have implemented performs up to 50% better than US Forestry's Wildfire Risk Map at explaining wildfires.
In 2018 a wildfire came through my hometown, nearly destroying our home. Since then, I've been dedicated to building a high-quality model for wildfire detection and offering it as an API so that you can build on top of it and stop the next wildfire.
Firespot collects fire data from 5 government agencies and puts it all in one app. Both human-reported and satellite-detected fires show up in Firespot. Set an alert radius and Firespot sends you notifications about local fires.