I'm going to give this thread a quick bump because i'm interested in this too.
Project Media/FX Bay, FX tab. It's dockable and searchable.
Also, per track: hovering over the TCP FX button shows tooltip, rightclicking FX button lists them selectable for floating.
Though not exactly what the OP asked for, I arrange my layout this way in part so that I can get convenient access to the FX list and sends. It does require first selecting the track.