Flix Patrol just compiles the public rankings from the streamers themselves as far as I know.

Parrot Analytics used to make public their rankings that incorporate everything available, including social media volumes, and presumably ‘alternative views’. They were excellent leading indicators and covered many markets that the other metric companies didn’t. However, they stopped making their top ten streaming shows list available, let alone their show by country details, and we don’t see them reported in entertainment media as we once did.