At the moment, there is no way to save bookmarks into categories on the forum. I think if the user could make categories in which he could store bookmarks it would be a great addition to the forum because it would make navigation and saving bookmarks so much easier! I made an example on how it could look like:
I think you should request this on Discourse. It’s quite a big feature, so the main hub needs to implement it it. Plus, it’s quite a useful one, so any other platforms that use Discourse can also get that feature. It will be universal.
Could you provide a link to where I should post it, please?
You should be able to do it over there
Until/unless this is added, you can use an extension like Pocket: (advantage of it is, it’s across the web; not just one forum)