TheBrain 12 is very nice!
I’ve been using it to augment Finder and keep up with the dumpster fire that are my files for my research, source code, data sets, processed data, graphs, figures, etc.
It allows me to link them visually, add notes, etc., while leaving them in place on my drives, so all my code doesn’t break by moving them around. In this way, it is similar to Hook, but better for me in that it has a visual interface.
Then there’s all the markdown, linking, backlinks, mentions, etc. that have been added in v12.