I have been looking for readily available solutions to authenticate a user account to a Laravel application and the only things that I've come across in the general sense of authentication is LDAP, JWT, and oAuth. All that I have found so far was to use external services to log into the Joomla! install, rather than use Joomla! as a server itself.
Other than trying to sync user accounts (which would require issuing password resets for first-time users and may turn users away), what would be the best way to have existing Joomla! users log into a Laravel application?