Foreclosure statistics sites

[Pandu Chimata]

In anticipation of more foreclosures in the future, I want to know the best sites that can provide this kind of information. I am not planning to do a mail campaign but want to see the market direction for timing the investment (though one can't time the market perfectly, but don't want to invest when it is at its peak). 

A few of them I listed here. Is there a specific one is more useful than others? Any recommendation? 

https://www.realtytrac.com/statsandtrends/

https://www.propertyradar.com/pricing