It sounds like like you're trying to encourage more meaningful connections between engineers and recruiters. That's a good thing, but the term PR is a turn off even used as an analogy.
Even if engineers are the mark rather than the intended audience, those roles often overlap so your message should appeal to both.
That said I think your content is on the right track. Maybe title it something like “here’s how to encourage more meaningful connections between engineers and recruiters”...
Although I'm not sure it's about creating meaningful connections between engineers and "recruiters," Although I guess it depends who the recruiter is in the company. Sometimes it's the CTO or engineering manager - but sometimes the initial story-telling (aka company pitch) is delegated to a traditional recruiter (which normally isn't as effective with engineers).
I'd prefer to see traditional recruiters go the way of the Tyrannosaurus.
If you want to hire the best team as an engineering manager it's typically best not to delegate the job to someone else.
Even if engineers are the mark rather than the intended audience, those roles often overlap so your message should appeal to both.
That said I think your content is on the right track. Maybe title it something like “here’s how to encourage more meaningful connections between engineers and recruiters”...