I have been working on an in browser game that helps you dance along and learn TikTok dances.
Right now, I only have one dance supported but based on feedback (of whether people find it useful) I would be looking to expand the number of TikToks.
I also posted a YouTube video where I try it myself to post a TikTok dance, explain the backstory of the project and show it in action: https://youtu.be/x2A0nOqvowo