Here are some of the things I do in Obsidian:

1. I have a Daily Note which is my starting point of the day. Aside from some TODOs and some daily reflections, it also contains an image map of things that are currently important. This map gets updated (in a template) once every couple of weeks, depending on where my focus is. Currently it links to a big project for a customer, my running progress, a webdav tool I'm working on, and a book I'm reading.

2. Many of my note templates automatically include a dataview query which spits out a list of related notes. E.g. for People that will be a list of recent meetings and mentions. For Programming related notes there's a list of notes that link to it, like for Java I have ~200 other notes that point at Java, from Method References to Apache Commons libraries.

3. Lots of links. This makes the local Graph View somewhat useful for rediscovery. This includes links to things that don't exist yet (and may never exist). Like I'm probably not going to create a note about Mitochondria, but several notes link to it.

Some more serendipitous discovery might be nice. I've experimented with various Related Notes plugins, most are garbage which find similarities where none exist because they can't tell the note structure apart from its salient content.

Would you happen to have these templates on Github or public somewhere?