Bill Rice lists and analyses the top 137 “Covid Contrarian” and/or “Freedom” Substack pages by number of subscribers.  The number of subscribers for the top 137 pages totals 5 million, which of course will include duplicates.

He estimates that as many as 4,500 Substack pages are challenging or are critics of covid and a myriad of other “official” narratives.

https://expose-news.com/2025/03/02/an-estimated-4500-substack-pages/