Substack by Category on August 29, 2026 is a mixed board of ten rank-1 newsletters, one per vertical, not a single overall chart. Hebrew for Christians leads Faith & Spirituality. SemiAnalysis leads Technology. The Bulwark leads U.S. Politics. Versus August 27, Henrik Zeberg, Penni Shelton, Escalation Trap, and Bernie Miklasz's sports row are gone. GUAP, which dropped off the overall Substack ten, still leads Music here. Compositionally Inclined holds Art & Illustration.
Top trending newsletters on Substack by Category: August 29
Hebrew for Christians (Faith & Spirituality): Rank 1 in Faith. New versus the August 27 category mix, which listed Penni Shelton in that vertical.
So Many Thoughts (Fashion & Beauty): Rank 1 in Fashion & Beauty. New versus August 27.
Blocked and Reported (Culture): Rank 1 in Culture. New versus August 27.
GUAP (Music): Rank 1 in Music. GUAP was on the August 27 overall Substack list and is absent from today's overall ten, while still leading this Music row.
SemiAnalysis (Technology): Rank 1 in Technology. August 27 listed Marcus on AI in that vertical. SemiAnalysis is the semiconductor-research newsletter in this slot today.
Compositionally Inclined (Art & Illustration): Rank 1 in Art. The same title was on the August 27 category board. Recurring illustration fixture.
The Bulwark (U.S. Politics): Rank 1 in U.S. Politics. New versus August 27. The published label uses U.S. Politics as returned in spirit by the feed.
Onder de Loeb (World Politics): Rank 1 in World Politics. August 27 listed Escalation Trap in that vertical.
Friday Forward (Business): Rank 1 in Business. August 27 listed Stanford GSB Professor on Startups & Investors.
beyond beurre blanc. (Food & Drink): Rank 1 in Food & Drink. New versus August 27. The trailing period is part of the API name.
The live ranked board beyond today's top 10 is available via the Trends MCP API. Get your free API key
What changed on Substack by Category since August 27
New entrants: Hebrew for Christians, So Many Thoughts, Blocked and Reported, SemiAnalysis, The Bulwark, Onder de Loeb, Friday Forward, beyond beurre blanc. GUAP and Compositionally Inclined persist in their verticals.
Drop-offs versus August 27 vertical leaders: Henrik Zeberg (Finance), Penni Shelton (Faith), Escalation Trap (World Politics), Stanford GSB Professor (Business), Marcus on AI (Technology), Bernie Miklasz (Sports), The Crucial Years (Climate), The Wright Report (News).
What today's category board reveals
Every row is rank 1 because the feed mixes category boards. Do not read this as a 1-10 overall ladder. GUAP leading Music while missing the overall ten is the split: a vertical winner can miss the sitewide chart.
Technology switching from Marcus on AI to SemiAnalysis is a chip-research name, not a consumer-AI writer. Politics is The Bulwark, not a campaign daily. The overall Spencer Pratt chart and this vertical grid barely overlap.
Track these trends in real time with Trends MCP
This ranked list came from the Trends MCP get_top_trends feed for Substack by Category with limit 10 as of 2026-08-29T02:01:36.626516+00:00. The matching data source page is Substack trending API.
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