Footfall for retail, property, also could be useful with commodities. But they have other data: they have your bills, emails, app usage data...again, not sure

Footfall for retail, property, also could be useful with commodities. But they have other data: they have your bills, emails, app usage data...again, not sure how legal it is or whether some of this isn't hacked data (App Annie is a, presumably, legal source...but there are far more).