Obsidian has two node maps, which are charts of related documents.
The global node map is prized by some, said to be of little use by others. I’m in that camp.
Local node maps show connections to nearby nodes. It’s a graphic representation of what you see in the Documents list in the See also and Classify inspector tab in Devonthink.
The local node map is kind of nice. There is a great script in these forums by Benoît Pointet that will generate a node map for selected nodes, so there is already a way to create a local node map - but unavoidable limitations prevent it from updating “live” as things change in Devonthink.
It’s a great script, though. Very handy.