Let's remember how Notion positioned himself at the very beginning - a platform for creating something and working together on it. A certain killer of Google Docs and Asana.
Why not continue this concept and continue to kill other Google products like... Google Forms?
What are Google Forms? This is the entry point, the beginning of work with any audience, with any interests, needs, and problems, which allows the initiator to start communicating with it.
Collect any information you need from the most interested and motivated people through simple forms: get the user contacts, pre-orders, discussions, feedback, and ideas (hehe, sounds familiar) - anything can be collected, stored, and operated in your personal database in Notion.
This is a simple epic way for people will see, test, and experience Notion's features... without even registering (hello, guest mode). An excellent touch point for further work with a heated and warm audience.