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)
B2B products, unless miraculous, do not generally "take off" without a lot of hard work, meetings, trade shows, client demos, etc, at least so far as I have seen.
To make any sales at all, it seems like you'd have to already know a lot of people in the industry, and it would have to outcompete not only other products, but just the old "we'll load all the shit we can into the truck/container based on human intuition".
In fact, ideally, you'd ask someone you know (or even better, they'll ask you) if this is a problem you can solve for them. If you can't sell it to people you already know, it'll be even harder to sell to people you don't, presumably.
Plus it will be very hard to articulate to an AI "you can't sit that on top of that!", but it's obvious when looking at it.
I'm in the midst of wading into B2B, alone, and low on capital, myself. My "success" so far is mostly due to dumb luck and being available to talk to.