Ask HN: How to monetize a list of more than 10000 software companies?

As the title says I've scraped through the internet a list of more than 10000 software companies emails.

I'd like to create a SaaS product that targets them, but the niches that I imagine are too crowded i.e. Project Management, CRM, etc...

Is there any easy product that a single dev shop can build to help software companies?

Any other way of monetizing the list is welcome.

Thanks in advance