Substack
Signal, Not Noise! By AJ Signal is new at 3 on Substack dated 2026-09-21T08:01:37.804638. Josh Appelbaum still holds 1. The Style Edit climbs 4 to 2. Four newsletters are new (Signal Not Noise, A Delicate Reader, Imperialist Realism, Behind the Suite). Dangerously Educated, The Install Edit, Jake's Take, and RiffPost drop off. The board mixed fashion and policy titles again, with Appelbaum as the only unchanged rank-1 name.
Top trending newsletters on Substack: September 21
Josh Appelbaum: Holds 1 for a second day. No widely reported extra trigger identified for September 21, 2026 beyond the repeated rank.
The Style Edit: Fashion newsletter. Climbs 4 to 2. Same style cluster as Intentional Luxury Bish at 4.
Signal, Not Noise! By AJ Signal: New at 3. No widely reported trigger identified for September 21, 2026 beyond the Substack rank.
Intentional Luxury Bish: Falls 2 to 4. Still on the board after leading some prior days. Two-rank drop, not a 5-rank mover.
Vanessa's Stitch Club: Craft newsletter. Falls 3 to 5. Unchanged presence, new rank.
A Delicate Reader: New at 6. No widely reported trigger identified for September 21, 2026 beyond the rank.
Imperialist Realism: New at 7. No widely reported trigger identified for September 21, 2026 beyond the rank.
TriziaZu STORIES: Climbs 9 to 8. Still on the board after yesterday's 9.
Shield of the Republic: Policy newsletter. Falls 7 to 9. Same title as September 20 rank 7.
Behind the Suite: New at 10. No widely reported trigger identified for September 21, 2026 beyond the rank.
The live ranked board beyond the public top 10 is available via the Trends MCP API. Get your free API key
What changed on Substack since yesterday
- New: Signal, Not Noise! By AJ Signal (3), A Delicate Reader (6), Imperialist Realism (7), Behind the Suite (10).
- Movers: none at 5-plus ranks. Style Edit 4 to 2. Intentional Luxury 2 to 4. Vanessa 3 to 5. Shield 7 to 9.
- Unchanged rank: Josh Appelbaum at 1.
- Dropped: The Install Edit (5), Dangerously Educated by Tayla Burrell (6), Jake's Take (8), RiffPost (10).
What today's Substack trends reveal
Appelbaum holding 1 is the continuity. Fashion still has Style Edit at 2, Intentional Luxury at 4, and stitch/craft at 5. The new block is Signal Not Noise at 3 plus reader, realism, and suite titles at 6, 7, and 10. Dangerously Educated, yesterday's education row, is gone.
The Substack Trending API stamp 2026-09-21T08:01:37.804638 is a four-row newsletter swap under a stable rank 1, not a politics-only board.
Track these trends in real time with Trends MCP
This ranked list came from the Trends MCP get_top_trends tool. The same API is built for media buyers and developers who need a dated board instead of a screenshot. get_growth was skipped: these rows are newsletter names. The matching data source page is Substack Trending API.
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