In these cases, it’s preferable if you contact Ria and/Jeff instead of an open call for a cover. The reason is that not just anyone would be able to cover it very readily, as they may need to be both your political lean and set up for facilitation/coordination, though in a real pinch, we sometimes just need someone who can coordinate.
Please also use Zoomshift discussions to send a note to everyone who may be eligible. Just click the “public” option off, and use checkboxes by the people who may be able to help out. Please include Ria and me when you do it.