A user, chris-remus, is seeking a Kanban board overlay for Discourse topics, allowing them to visually organize and display topics based on categories and tags. awesomerobot responds, clarifying the concept and mentions that this feature is not on the official roadmap, suggesting a theme or plugin could be created to achieve this. tobiaseigen shares a link to a previous discussion on a Kanban interface and notes the potential for combining it with the Tickets plugin. awesomerobot then points out that a Kanban board theme component has already been built by @david, with a link to the relevant discussion.
By displaying visually I assume you mean including an image on the topic list?
You can filter by category/tag, but what do you mean by organizing visually? Do you mean sortable by dragging and dropping topics (like kanban cards) into columns?
We don’t have anything like this on the official roadmap (plans for upcoming features for 2.3/2.4 are in https://meta.discourse.org/c/releases). You’ll want to build a theme or a plugin to accomplish what you’re looking for.