The dibs and the idea factory that have just shown up gave me the idea to create this thread.
Basically, if there's parts of your character's lore that you think leave an area to create a character but you don't want to or are too busy to make it you can bring attention to it on here. A clear example would be the Windsor Family which could be posted on this thread as there's space for new characters.
The poster has the right to apply rules of their own choice, I'd suggest something along the lines of don't kill them without good cause or ask me before any large decisions, overall it's up to the user.
For an example post (not real):
For sale a prime version of Tellumo's brother. Refer to me for history, do not kill without a PM for approval.
So let the auctions begin, also it's up to the user to decide who gets the position if multiple people want the role, I'd advise first come first served to avoid heartache.