Past four months I collected addons for Blender 2.80 and tried out most of them.
I see also what Blender users are looking for and I know that the addon Level Builder provides us to big advantages: Asset Management and snapping. It encourages us also to use linked objects and instances allowing us to build big scenes quickly with low memory usage.
It is shown in this video and some tips are provided:
Thanks to @kennethlo for developing this addon.