We already have a chat room that is open all the time that any editor can hang out in while editing. It has been my dream to have it staffed at least part of the time, like office hours, but that hasn't happened yet. The emptiness of the room feeds on itself; it's empty, so no one bothers to go in. Changing the format and acquiring yet another chat tool won't change that. The Fanlore chat room is linked from the sidebar under "Shortcuts for Editors", and there is a link on the main page, and if we create project pages, we can include a direct link there as well.

Theoretically, anyone could post to the dreamwidth community and invite people to join them in chat a) right then or b) at a specific time.

The talk page for the project page itself is another place to discuss the project.

What sort of tutorial do you mean? We have a tutorial for basic editing. Writing tutorials geared specifically toward making edits for each project would be great, too. Maybe use subpages, like

Fanlore:Doujin Fandom project
Fanlore:Doujin Fandom project/Tutorial

The talk pages are not out of sight when you visit the Recent Changes page. That is where you see all the activity happening on the wiki. You can even look at just talk page edits