Spencer Pratt remains rank 1 on Substack on August 29, 2026, the same slot as August 27. Callie Coles jumps from rank 6 to rank 2. Your Brain On Mom holds inside the ten at rank 3 (rank 3 on August 27 as well). New names are The Neter at 4, The Style Edit at 6, Nancy & Wayne at 8, and Sweats & The City at 9. GUAP, Isabella Boylston, and several August 27 titles drop off. Bernie Miklasz slips from 2 to 5.
Top trending newsletters on Substack: August 29
Spencer Pratt: Reality-TV figure's newsletter, rank 1 on August 27 and rank 1 today. Recurring Substack leader on this feed.
Callie Coles: Rank 6 on August 27, rank 2 today, a 4-place jump. No widely reported single-post news file was attached in the fetches used here.
Your Brain On Mom: Rank 3 on August 27 and rank 3 today. Recurring parenting-science title.
The Neter: New versus August 27. Rank 4. No widely reported trigger identified for August 29, 2026.
Bernie Miklasz: St. Louis sports columnist, rank 2 on August 27, rank 5 today. He also appears on the August 27 Substack-by-category sports row; that category board does not list him today.
The Style Edit: New versus August 27. Rank 6. Fashion newsletter, no extra campaign date found.
THINGS I'D TEXT YOU: Rank 5 on August 27, rank 7 today. Recurring voice-note/text format title.
Nancy & Wayne: New versus August 27. Rank 8. No widely reported trigger identified for August 29, 2026.
Sweats & The City: New versus August 27. Rank 9.
Dear Diary By Maryam H Mirza: Rank 4 on August 27, rank 10 today, a 6-place drop. Still on the board, unlike GUAP.
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What changed on Substack since August 27
New entrants: The Neter (4), The Style Edit (6), Nancy & Wayne (8), Sweats & The City (9).
Big movers: Dear Diary 4 to 10. Callie Coles 6 to 2 (4 places). Bernie Miklasz 2 to 5.
Drop-offs: GUAP and other August 27 names that filled slots 7-10 on that file, including Isabella Boylston where present on the truncated August 27 extract.
What today's Substack board reveals
The overall chart is still personality newsletters, not subject verticals. Pratt at 1 is a hold. Callie Coles at 2 is the climber. Dear Diary sliding 6 ranks is the fade.
Category Substack the same morning is a different mixed-board of rank-1s by vertical (Hebrew for Christians, SemiAnalysis, The Bulwark). Those names do not overlap this overall ten except where a writer also charts overall, which today they do not.
Track these trends in real time with Trends MCP
This ranked list came from the Trends MCP get_top_trends feed for Substack with limit 10 as of 2026-08-29T02:01:36.626516+00:00. The matching data source page is Substack trending API.
{
"type": "Substack",
"limit": 10
}