When I was building PitchGround, this is what I did. My target audience were mostly small business owners, agencies and marketers.

So I built a community around these people and start providing them with value contents, started doing some webinars, partners and collaboration.

Built an initial set of audience, and then launched PitchGround.

I will always ask questions in the community, which I would use as a way to validate my idea, get feedback and more.

This helped me connect with my audience better. When I launched PitchGround, I already had initial audience to begin with.

I continue doing the same till date.

Build Contents to Build Distribution > Invite users to our community> Create Brand Awareness.

That's the general flow I follow.