The Edits / projects which have required a casting call for voiceover work have usually been made in their own project thread - as far as I know there is no separate specific place to post them.

Sometimes a project editor may have temporarily changed their thread title to include ‘Casting Call - Voice Actors required for project’ or something similar, or with an update etc - that may be worth trying.

Or maybe starting a general ‘Request for Voiceover talent’ thread that many of the Editors on here could use if they so need?

Good luck with it man 😃