I don’t think that outsourcing our critical faculties is a good idea. Wikipedia has policies and guidelines that have been established and refined over the years to help us to assess what is a reliable source for what type of claim; our internal systems allow us to debate and discuss this to arrive at conclusions by reasoned argument and consensus-forming. Assessing the quality and suitability of sources for specific claims is amongst the most important things editors do on Wikipedia - sites like Mediabiasfactcheck might be a useful resource to help inform our discussions, but we shouldn’t attempt to create an environment where it’s sufficient to say ‘X’ is reliable because ‘Y’ says so.