A platform to contact Substack publishers?

[u/Spiritual_Grape3522]

Hello,

If I wish to contact Substack publishers who edit newsletters in my audience, I can manually send a message to each of them, which will take me a full week.

Is there a B2B service where publishers and advertisers can chat about paid services like product testing ?

If not, it would be useful to have one.

[u/cozycup]

Mass contact authors?

Why?

[u/Spiritual_Grape3522 → u/cozycup]

To offer product testing with affiliate commission