They could do it in the context of elections, that's for sure. There could be other organizations out there that are also well suited to do it in a broader context.
The issues with social media are not only related to elections, of course, and that's why I'm suggesting.... It may be Elections Canada during the context of an election that does a bit on this in their campaign about informing electors about how and where to vote. They also could inform them about how they can assess the reliability of the data or the information that comes to them.