I'm looking for a tool for idea management, but the apps from the Omnitools or workflowy don't suffice. I need something that lets me arrange ideas (in the form of graphics, entered text, or drawings) on a canvas and tag them. I would also like an alternative view, for example by tag or entry or so, so I can go through them in linear order.
Is anyone aware of such a tool? I'm not sure what to look for but there has to be something like that.