Using Bridge with Dropbox + Selective Sync

I store all of my creative assets on Dropbox. And I mean everything. 115 GB worth to be exact. I keep opting for Dropbox because of the "Selective Sync". I love that I can sync only what I need for specific projects without jeopardizing precious hard drive space.  

With the recent Adobe updates, I've also started building CC Libraries for more specific projects. I love how easy it is to access everything across Adobe platforms.

Now I'm at a crossroads where I have assets everywhere (Dropbox, CC Libraries, my "Downloads" folder when I'm feeling particularly lazy, etc.). They need to be sorted, tagged, renamed, and organized. And I need to be able to access them anywhere. I want to do that in ONE platform (enter Bridge) but I don't want to have to use Selective Sync in Finder first. I also don't want to overlap CC Libraries/Dropbox or CC Libraries/Bridge. 

What workflows or org management systems have worked for you? Specifically with an asset library that just cannot live locally on a hard drive?