Need your help: solution looking for a problem

Hi gang,

I need help finding a target audience for a digital whiteboard prototype (screenshot: https://gyazo.com/5efe95115c81c20386551dfc48ca64ef ) I have been working on for fun.

Online digital whiteboards are not new (miro.com, mural.co, whimsical.com to name a few) but it is a type of product I enjoy working on so I would like to find a use for it if I can.

I would like to pick your brain:

How could I make this product more unique?
Can you think of an underserved niche this product could be used for?

Examples:
Miro and Mural show the users what they can do with the tool through board templates.

Whimsical has identified a few high level use cases (sticky notes, mind maps, flowcharts, wireframes) and have launched "subproducts" based on the same software.

I think Miro, Mural and Whimsical are still too generic, it is hard for them to own a specific word in their users's mind because they can be everything to everyone.

What would be a great beachhead market for this type of product?

(by the way, I am looking for a non technical co-founder interested in working on Future of Work stuff).

Thanks!