Forget the usual SEO and focus on high-quality, in-depth textual and video content.
Build your list for email marketing.
Paid ads (FB, Google) to drive targeted traffic. PS - I do that.
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What we are currently doing: 1) Cold outreach to power users - to convert them into affiliates. 2) Cold outreach to individuals who have target ICP communities. 3) SEO for more long term (not for the first 500)