Drush 9 command equivalent to core-quick-drupal (qd)?
drush qd is not currently available in Drush 9. It would be easy enough to make a short shell script to call composer create-project followed by drush site-install and drush uli.

This command will probably reappear in a later release, sometime after 9.0.0 stable. A pull request that implemented qd would also be welcome.