@nicole has a fantastic 16-minute Youtube video at https://youtu.be/vS-b_RUtL1A explaining how she organises her notes in Obsidian for findability with LATCH: Location, Alphabet, Time, Category and Hierarchy.
Cater to each of these search approaches with combinations of Obsidian's organising methods: Folders, Links, Tags and Metadata.
"(...) In conclusion, for now, I will run both types of metadata side-by-side: hashtags as well as internal links. And I’ll create group views, ie. lists, using Maps Of Content and Dataview. (...)"