Start with size
Use member rankings for broad reach, then inspect freshness and category fit on each profile.
Find leaders by audience size, subscriber growth and sampled post reach. Each board names its measurement so unlike metrics are never mixed into one score.
Ranked by measured member count at the latest crawl.
Ranked only when a complete seven-day baseline and fresh endpoint exist.
Ranked by sampled average post views, with missing values excluded.
Use member rankings for broad reach, then inspect freshness and category fit on each profile.
Growth rankings can surface channels gaining subscribers before they become obvious.
Average views and sampled ERR add context, but they are signals rather than proof of audience authenticity.