I've gained a taste for a yt channel that shows depopulated towns across the US.
It seems to me that local governments must also have tons of properties to sell or give away. The real issue is that these are in places where people don't usually want to live.
Peter Santenello does a great job of this.
Not simply "don't want to live here", usually also "can't, there are no opportunities for income here". I know lots of people optimistic that remote work would upend this, but even the few still-fully-remote workers I know need to live in areas where they or their family can find non-remote jobs if ever necessary.