The channel list is the first constraint in the whole setup: it caps how many accounts you can usefully run and therefore how much the work produces. Sizing it by guesswork is the common mistake.
What has to be true of a channel
- Discussions enabled. No comment thread, no work. This alone removes a large share of any raw list.
- It publishes regularly. A channel posting monthly gives you twelve chances a year — dead channels.
- Real readers. Views proportional to subscribers — spotting a fake channel.
- Your audience. Adjacent subjects are acceptable; unrelated ones are not.
How the number follows
Work backwards from posting frequency. A channel that publishes daily offers roughly thirty opportunities a month; one that publishes weekly, four. To be present consistently you need enough channels that opportunities arrive several times a day across the whole list.
Then the accounts follow from the channels, not the other way round: the list splits between them without overlap — spreading load.
Why more is not simply better
A larger list dilutes checking. Fifty channels nobody verifies contain dead ones, inflated ones and irrelevant ones, and the accounts spend their limited safe volume on them — how many comments a day is safe.
Overlap works in your favour here
Because readers in a niche follow several channels, being present in the right few reaches most of the audience anyway — audience overlap.
Keeping the list alive
Re-check monthly. A list assembled once decays quietly, and the first symptom is falling returns that look like the method failing — building a channel list.
How Neurogram does this
Everything above is manual work that runs into the number of hours in a day. Neurogram does it on your own accounts and without you: it collects channels and audiences, writes comments and replies with a language model, and keeps limits and quiet hours so the accounts survive. See pricing or look at your case.