Best Instagramマーケティング Newsletters in 2026

NewsletterFIT tracks 3 newsletters that cover Instagramマーケティング as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are What's Left (21K), インスタ×オンライン講座【攻略マガジン】 (10K) and Good Humor (1K).

Updated Nov 5, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    What's Left21K subscribers

    SubstackSeveral times a week · last post 3 days ago

    From recent posts: What's Left publishes a rotating mix of personal essays on grief and trauma, lifestyle roundups on vintage fashion and sustainable living, and strategic guides on social media growth. The publication serves readers…

    Likely audience: Social media managers

  2. 2
    インスタ×オンライン講座【攻略マガジン】10K subscribers

    SubstackEvery two weeks · last post 41 days ago

    インスタでは自社で累計45億 クライアントの総売上は100億越え 会員数4400名越えの講座「QMPSS」で 全115ジャンルで収益化を達成した インスタ×オンライン講座の極意をお届け🕊️

    Likely audience: Salon owners

  3. 3
    Good Humor1K subscribers

    SubstackEvery two weeks · last post 7 days ago

    From recent posts: Good Humor publishes a rotating mix of personal essays, cultural critiques, and practical advice covering topics from viral social media experiences and home organization to theater reviews and geopolitical conflicts.

    Likely audience: midlife women

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