The one "magic" thing I've figured out is to put "_to check out" folders in various places. So, in the above example .../plugins/_to check out is for neovim plugins to...well, check out, but then .../editors_to check out is for new command line editors. Not that there are many of those, but you get the idea.
The other "magic" thing to make this actually work is to, rather than immediately going to HN or Reddit or whatever, instead I pick whatever category tickles my fancy at the moment and then find something in the _to check out folder.
I recently had the idea to write a little app that grabs a few random bookmarks from the various _to check out folders and serve them to me in the morning. I think that'll tie the whole together nicely.