I’ve been thinking about this too! From the aspect of “How do we share good practice, learning and connect the dots across the organisation?”.
I’m experimenting with lunchtime sessions that are sort of unconference-lite. First one is next week, will report back shortly thereafter.
On a related note, our housing team are experimenting with Padlet to share within the how everyone is feeling, what are the highlight and lowlights of the week etc. This is all displayed on a monitor mounted on a wall, so passers by can have a nose too.