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A free guide by Mariah Brunner ↗ INSTAGRAM ↗ TIKTOK

$3K/Month Running
Creators’ Other Platforms

Most creators are huge on one platform and missing on the rest. You can run their other accounts using AI and charge a monthly retainer. Here’s the full system: the pitch, the tools and the workflow.

The deal is simple. Find a creator who’s big on YouTube or Instagram and barely posting on TikTok, Threads, LinkedIn or Substack. Pitch them a monthly retainer to run those platforms, and use AI to do most of the work. They get growth on platforms they were ignoring. You get recurring income.

Most creators don’t have time to learn this stuff, so you don’t need to be an expert to stand out. You need a system.

Step 1: Find The Right Creator
  1. Strong on one platform. Roughly 50K to 500K followers on YouTube or Instagram. Big enough to have a real audience, small enough that they probably don’t have a team yet.
  2. Quiet or missing on others. Check their TikTok, Threads, LinkedIn and Substack. If they post once a month or not at all, that’s your opening.
  3. Posting good long-form content. You need videos or writing you can repurpose. If they only post 30-second clips, there’s nothing to work with.

Make a list of 20 creators that fit. You’ll need to pitch a lot to land a few.

Step 2: The Pitch

DM them. Keep it short and lead with what they’re missing, not what you do. Before you send it, make 3 sample posts from their last video. Nothing sells like seeing their own content on a new platform.

The Pitch DM
Hey [first name], I've been a fan of your [YouTube channel / Instagram] for a while. The [specific video or post] was really good. Quick observation: you're crushing it on [main platform] but you're barely on [TikTok / Threads / LinkedIn / Substack]. There's a real audience there for what you do. I run an AI system that takes your existing content and turns it into platform-ready posts for the channels you're not on. You don't film anything new or write anything new. You keep doing what you're doing on [main platform]. I'd run [TikTok / Threads / LinkedIn / Substack] for you on a flat monthly retainer, and you approve everything before it goes out. Want me to send over a quick rundown of what that would look like, with 3 sample posts made from your last video?

Pricing

Start at $1,000 to $1,500 a month for one extra platform. Move to $2,500 to $3,000 a month for 3 or 4 platforms. Don’t undersell yourself, but don’t price yourself out before you have a track record.

Step 3: Build The System

Once they say yes, set up their system. It takes a few hours per creator, once.

01

A Claude Project for their voice

In Claude, click Projects, then New project, and name it after the creator. Add 5 to 10 of their best posts and video transcripts to the project’s files, then paste the prompt below into the project instructions. Now every transcript you drop in comes back in their voice. (Projects help)

Creator Voice Project Instructions
You are the ghostwriter and content repurposer for [CREATOR NAME], a creator in [NICHE] with [AUDIENCE SIZE] on [MAIN PLATFORM]. I run their [LIST PLATFORMS] for them. THEIR VOICE - Study the example posts and transcripts in this project's files before writing anything. - Tone: [e.g. casual and funny / expert and direct / warm and personal] - Words and phrases they use often: [list] - Things they never say or do: [e.g. no slang, no hashtags on LinkedIn, never mention competitors, no medical claims] - Their audience: [who they are and what they care about] HOW TO WORK 1. When I paste a transcript, first pull out the 5 strongest ideas, stories or lines and quote where each came from. 2. Only use claims, numbers and stories that are in the transcript. Never invent facts, results or quotes. 3. Write for each platform's style: - X/Threads: punchy, one idea per post, a hook in the first line - LinkedIn: a story or lesson, short paragraphs, ends with a question - Substack: a full newsletter with a headline, subhead and sections - Short-video captions: one hook line plus one sentence of context 4. Flag anything that might need the creator's approval (sponsors, personal details, hot takes). OUTPUT Group everything by platform with clear headings, ready to paste into the scheduler. End with a 3-line note: what I should post first, what you'd test next week, and any questions for the creator.

02

OpusClip for short-form video

Upload their long video to OpusClip. It finds the best moments, turns them into vertical clips with captions and gives each one a virality score. Starter is $15 a month and Pro is $29 a month, and Pro adds a built-in scheduler. (OpusClip pricing)

Pick the top 5 to 7 clips for TikTok, Reels and Shorts.

03

A posting schedule

Queue the whole week in one sitting with a scheduler like Buffer, Later or Metricool. Substack has its own scheduler, so schedule the newsletter there. The whole point is the creator never has to think about it.

Step 4: Your Weekly Workflow
  1. Monday: grab the transcript of their newest video and paste it into their Claude Project with the prompt below.
  2. Clips: upload the video to OpusClip and pick the top 5.
  3. Schedule everything across the platforms, after the creator approves it.
  4. Tuesday to Friday: reply to comments, watch what’s landing and tweak as you go.
This Week’s Content
Here's the transcript of [CREATOR NAME]'s newest video: [paste transcript] Using this project's voice rules, make this week's content: 1. 5 X/Threads posts 2. 1 LinkedIn post 3. 1 Substack newsletter that rewrites the whole video as a read 4. Captions for these clip moments: [paste the timestamps or titles of the 5 clips you picked in OpusClip] Then, from last week's results below, tell me what's working and what to change: [paste top and bottom posts with views, likes and comments, or write "first week"]

That’s about 2 to 3 hours a week per creator once it’s running. Land 3 creators at $2,000 a month each and you’re at $6,000 a month for under 10 hours of work a week.

The Real Move

Most creators know they’re leaving money on the table by ignoring other platforms. They just don’t want to do the work. What you’re really selling is their time back. Frame the pitch that way.