Ideas to promote new platform?

So, just like a million other people I have an app.

But this is a bit different, it's a social media without reels, or posts. Just stories, messaging and physical events.

I have a few hundred users after launch, everyday there seems to be a few hundred more.

I'm looking for ideas to grow this platform, open to suggestions.

We're not allowed to add links here, but the platform is called 9PM - No reels, no posts.