As Leon said, most of us are interested in vintage sewing machines (those without electronics). Most sewing machines have "groups" - what used to be called mailing lists. There are groups for Singer slant machines, Kenmore machines and about any other machine you can think of. Go to
groups.io and look for groups that have Viking and/or Husqvarna along with sewing machines in the group name. Also look on facebook for the same thing. Many groups have migrated there as well. I don't do facebook, so can't give any more specific information about it than that.
Good luck
bkay