Establish a guild, or chapter, or community of practice, or whatever you choose to call a group with common skills.
That group will be coached by a master of the craft. It should have a chair or organiser, often the master, but it is not an opportunity to impose another manager. It is one of the three main ways to connect across siloes.
(A C.o.I is a community of interest, a bunch of people interested in a topic for whatever reason. A guild is a form of community of practice, a bunch of people with a shared expertise.)
See also
Rituals
Employee resource groups