Spencer Pratt remains the rank 1 Substack newsletter on August 27, 2026. The account flags itself as Pratt for Mayor 2026 campaign use, and an August 20 post covered an L.A. mayoral debate stream failure. Bernie Miklasz holds rank 2. Your Brain On Mom is a new rank 3. Versus August 26, Matt Calkins, Laurah Wheaton, @lizleatrice, and Unhappy Place left the top 10.
Top trending newsletters on Substack: August 27
Spencer Pratt: Reality-TV figure running a Los Angeles mayor campaign newsletter. Rank 1 for a second day. The August 20 "Surviving the Dumb and Dumber Debate" post described watching a mayoral debate after the official stream capped out.
Bernie Miklasz: St. Louis sports columnist newsletter, rank 2 for a second day. The same name also appears on the Substack by Category sports row.
Your Brain On Mom: Parenting newsletter, new at rank 3.
Dear Diary By Maryam H Mirza: Diary-format newsletter, new at rank 4.
THINGS I'D TEXT YOU: Down from rank 3 to rank 5.
Callie Coles: Up from rank 8 to rank 6.
GUAP: Music newsletter, new at rank 7. The same name leads the Music row on Substack by Category.
Isabella Boylston: Dance and ballet newsletter, new at rank 8.
The Blue Star Bulletin: Down from rank 6 to rank 9.
The Style Edit: Down from rank 5 to rank 10. A Substack trending API board is the source.
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 since yesterday
New entrants: Your Brain On Mom (3), Dear Diary By Maryam H Mirza (4), GUAP (7), Isabella Boylston (8).
Big movers: THINGS I'D TEXT YOU 3 to 5; Callie Coles 8 to 6; The Blue Star Bulletin 6 to 9; The Style Edit 5 to 10.
Drop-offs: Matt Calkins (was 4), Laurah Wheaton (was 7), @lizleatrice (was 9), Unhappy Place (was 10).
Spencer Pratt and Bernie Miklasz held 1 and 2.
What today's Substack board reveals
Campaign and sports still lock the top 2. The new names are parenting at 3, diary at 4, music at 7, and ballet at 8. That is four lifestyle entrants, or 40 percent of the published 10, under a political lead. Callie Coles plus 2 (8 to 6) is the only climb besides those entries.
GUAP appearing on both the overall list (rank 7) and the Music category list is the cross-board tell. The Style Edit's drop from 5 to 10 is a 5-rank move, the threshold this roundup treats as a big mover. Unhappy Place falling off the overall list while the category board shuffled is a reminder that mixed all-rank-1 category feeds are not the same ranking as this 1-10 list. Pratt's August 20 debate post is still the last dated campaign note found for rank 1.
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. The call is for newsletter-rank monitors. The matching data source page is Substack trending API.
{
"type": "Substack",
"limit": 10
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