Joining our region editors on the South Central Region Discord Chat Server is a great choice:
https://discord.io/waze-scr
But often Waze users just wish to send limited requests for map changes, updates, fixes, so our team can make those corrections. Private Messaging (PM) is always available here in the Forum. But that does not allow for attaching screenshots, and other .jpg, .png, files – so often critical to getting the proper updates for the map.
We have setup a new E-mail address to allow sending those change requests. Using this E-MAIL allows attachments – to help make more accurate and timely corrections.