Productivity optimization newsletters

NewsletterFIT tracks 5 newsletters that cover Productivity optimization as a primary topic, 4 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are Jardín Mental (98K), ESG’s Substack (22K) and adam-shilton.beehiiv.com (4K).

Updated Oct 30, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Jardín Mental 98K subscribers

    Substack Every two weeks · last post 15 days ago

    Likely audience: Productivity enthusiasts

  2. 2
    ESG’s Substack 22K subscribers

    Substack Every two weeks · last post 16 days ago

    Likely audience: Women focused on fitness and weight loss

  3. 3
    adam-shilton.beehiiv.com 4K subscribers

    beehiiv Every two weeks · last post 20 days ago

    Likely audience: Productivity coaches

  4. 4
    TaeguTec Times —

    LinkedIn Monthly or less · last post 8 days ago

    Likely audience: Manufacturing engineers

  5. 5
    AI Fabric | Trasforma l’Assistenza Tecnica —

    Substack last post Jan 2, 2026

    Likely audience: HR professionals

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