I made a plugin to more easily and quickly (imo) work with booleans in an organized manner in 2.8 if anyone is interested.
Edit: download link https://pastebin.com/umxZZ34T
If it doesn’t activate properly, try renaming the file to boolean_collections.py
You have to set up the hotkey yourself. Go to Edit, Preferences, Input, 3D View, Object Mode, Object Mode (Global), Add New, chose a key (I use E), type wm.call_menu_pie in the text box. Then a new text box will appear under where you choose the key. In that text box type object.boolean_collections.