Best AI tools for non-technical founder to demonstrate the vision (I will not promote)

Hey all, I have an MVP nearly ready but when I speak to potential co-founders, customers and investors, I want to be able to show the vision of what it will look like and do in the future. Wondering if people have an opinion on the best tool(s) out there to sell this sort of vision? The output doesn't need to be usable, but I need the people who look at it to understand what the product will be in the future. It could be a bunch of nicely designed screens (something like Uizard or Visily seems to do this) or even a video explaining what it will do (don't think any of the video tools are at this level yet) or it may be piecing together a few tools. Keen to hear what others have done in this case!