The pauper metagame is an abstract concept based on challenge top 32 data for the most part.  Pyotr has created a project to get to the deep metagame by having players record their match history.  He compiles this data monthly to get a picture of the metagame and see the trends. 

If you're interested in supporting the project, please check out his Patreon! https://t.co/QDBgL9zCJP

https://twitter.com/PyotrPavel

Kalikaiz can be found on twitter and youtube

https://twitter.com/jakeAls

www.youtube.com/kalikaiz