Give away a genuinely useful free tool. The tool is the ad, and the ad is the top of funnel.
Broken down by Jonas, a former Meta growth lead, from HubSpot's live ads in the Meta Ad LibraryHubSpot doesn't run ads saying 'buy our CRM.' They run ads for free tools, Website Grader, Email Signature Generator, Blog Ideas Generator, Invoice Templates. Each free tool solves a small, specific problem. The user gets value immediately. HubSpot gets an email address and a user who now associates the brand with helpful tools. The free tool is simultaneously the ad (it provides the click motivation), the landing page (it delivers value), and the lead magnet (it captures the email). Three funnel stages compressed into one interaction.
Every SaaS company has a feature that could be a standalone free tool. A project management tool could offer a free meeting agenda template generator. An accounting tool could offer a free tax deadline calculator. A design tool could offer a free color palette picker. The tool should solve a problem adjacent to your core product. Users who find the tool useful are pre-qualified leads for your paid product. This is the highest-ROI B2B advertising strategy on Meta.
This breakdown is built from HubSpot's active ads, running for 8+ weeks at the time of writing, a signal the format is still working. See the current set for yourself in Meta's public Ad Library.