Imagine the audience you want is already gathered, paying attention, and trusting one specific voice to tell them what matters. That is what a large Substack is. Lenny Rachitsky’s newsletter reaches a vast, engaged audience of product and tech professionals. Casey Newton’s Platformer is required reading for people who cover and work in tech. Gergely Orosz’s The Pragmatic Engineer commands deep trust among software engineers. These are not blogs; they are publications with reach and influence that rival or exceed many legacy outlets, and their readers act on what the author recommends.
That is why learning to write for Substack publications is worth real effort, and why the approach is different from pitching a magazine. A Substack is usually one person or a small team with a direct, trusted relationship to a specific audience. There is no masthead to work through, no formal contributor process at most of them, and the author’s standard is personal: does this make my newsletter better for my readers. Get inside that standard and you reach an audience that is pre-qualified, attentive, and primed to act. Here are the seven plays that get you published in the Substacks your buyers already read.
Play one: pick newsletters by audience, not by size
The instinct is to chase the biggest Substack you can name, but raw subscriber count is the wrong filter. A newsletter with a smaller, tightly defined audience that exactly matches your buyer is worth more to you than a giant one whose readers will never become customers. The first play is to map the Substacks your actual audience reads and rank them by fit, not by fame.
Find these by asking where your best customers spend their reading attention, then study those newsletters closely. A mid-sized Substack focused precisely on your niche puts you in front of people who could buy, refer, or hire, which a broad general-interest newsletter rarely does. When you choose to write for Substack publications based on audience fit, every placement reaches people who matter to your business, and that targeting beats the vanity of a bigger logo with a looser audience.
Play two: read deeply before you reach out
Substack authors have a personal relationship with their writing in a way masthead editors often do not, which means a pitch that misreads the newsletter is worse than no pitch at all. The author can tell instantly whether you read them, and a generic approach signals you see their publication as a billboard rather than a body of work they care about. The fix is to read enough of their archive to understand their voice, their recurring themes, and what they value.
When you reach out, show that understanding. Reference specific pieces, engage with the ideas they actually write about, and frame your pitch as something that fits their world rather than something you want to broadcast through it. Authors who pour themselves into a newsletter respond to people who clearly read and respect it, and they ignore people who clearly did not. The reading is not optional throat-clearing; it is the difference between a pitch that feels like a conversation and one that feels like spam.
Play three: offer the reader something, not yourself
The fastest rejection comes from a pitch that is obviously about promoting you. Substack authors guard their reader trust closely, because that trust is the entire value of their publication, and they will not spend it on a thinly disguised ad. The play is to lead with genuine value to their readers: an insight, a story, data, or expertise that makes the newsletter better for the people who subscribe.
Your benefit, the exposure, the credibility, the audience, comes as a byproduct of contributing something the readers genuinely want. A guest piece or contribution that teaches the author’s audience something real earns its place; one that exists to funnel attention to you does not. The authors with the most valuable audiences are the most protective of them, so the way in is to make their readers’ experience better, with your visibility as the side effect rather than the point.
Play four: match the voice and the format
Substacks have distinct voices and formats, more so than traditional publications, because they are extensions of a person. Some are personal and conversational, some are rigorous and analytical, some are short and frequent, some are long and occasional. A contribution that ignores the established voice feels like an intrusion, even if the content is good, because it breaks the experience the reader subscribed for.
So when you write for Substack publications, write in a way that fits the newsletter, not in your default house style. Study how the author structures pieces, how formal or personal the tone is, how long the typical post runs, and match it. The goal is for your contribution to feel like a natural part of the publication rather than a foreign object dropped into it. An author is far more likely to run something that sounds like it belongs, because it preserves the experience their readers pay for.
Play five: make collaboration effortless
Substack authors usually run lean, often as a one-person operation, which means the contributor who is easy to work with has a real edge. Deliver clean, finished writing that needs little editing, respond quickly, hit any deadline you agree to, and be flexible about the author’s preferences for their own publication. The author juggling writing, editing, and growing their newsletter alone values a contributor who reduces their workload rather than adding to it.
This ease is also what turns one contribution into an ongoing relationship. An author who finds you reliable and genuinely additive to their newsletter may invite you back, mention your work, or open doors to other writers in their network, since the Substack world is densely interconnected. The reputation you build as an effortless, valuable contributor travels, and in a space built on personal relationships, that reputation is worth more than any single placement.
Play six: use the direct relationship the format allows
Substack collapses the distance between contributor and publisher in a way traditional media does not. You are dealing directly with the person who owns the audience, which means the relationship can be more genuine and more durable than a transactional pitch to an editor you never meet. The play is to treat that access as a relationship to build, not a transaction to complete.
Engage with the author’s work over time, support their newsletter as a reader, and be a genuine member of their world rather than a one-time pitcher. The authors whose audiences you most want to reach are people, with their own goals and standards, and the contributors who do best are the ones who connect with them as people. This direct relationship is the structural advantage of Substack over legacy media, and the people who win at it are the ones who use it to build standing rather than to extract a single placement.
Play seven: capture the value past the single post
A contribution to a strong Substack is not a one-off; it is an asset you can put to work. The placement gives you credibility with a trusted audience, a clip that signals you are a recognized voice, and often a durable link or reference. The final play is to use each placement deliberately, to reach the next newsletter, to support your other PR, and to build a body of work that establishes you as a known contributor in your field.
A guest piece in a respected Substack also corroborates your expertise to the search and AI systems that now read these publications as credible sources, which extends the value well past the day it runs. So the case for writing for Substack publications is double: you reach a pre-qualified, attentive audience now, and you build a credential that keeps working afterward. Pick for fit, read deeply, serve the reader, and treat each author as a relationship, and the Substacks your buyers trust become the publications that carry your name.