Built an app what to do next?

I have built my app which creates summarised voice notes the app(checkout what it does at https://everlogue.aicygnus.com/) is in review meanwhile I am thinking what to do once the app is reviewed. I'm thinking of trying the following things:

Demo
Communities (Facebook groups, forums, Reddit, Slack groups)
Short Videos
Software directories
Document App use cases on Social media

After that I would like to narrow them down to 2-3 channels from where I can get traffic and put content regularly.

What do you think about this strategy should I try something else.