Trisquel GNU/Linux includes support and manuals. The website includes documentation and support forums that function as convenient front-ends for mailing lists.
Also, the Trisquel project has an official IRC (Internet Relay Chat) channel named #trisquel on https://libera.chat that anyone can join. Just follow this howto
If you want to recruit support for your business or school, team Sognus (business partner of the project) can give you the help you need.