Best practice for 'Various Artists' compilation albums?

I have used “Server” as a place holder for the “friendly name” of your server, which appears in the side bar under Settings. If you don’t see that when using the web app, it means that you’ll have to re-authenticate your server.

As I mentioned above, you can embed a “Releasetype” meta tag to override what is fetched from Musicbrainz.org, which is where Plex is getting music metadata by default.
Plex Media Server 1.27.2.5929 - support for release type embedded tags - #33 by certuna