In the context of data models used by Splunk Enterprise Security (ES), relevant data models typically include types related to various areas of security data. 'Web' is a relevant data model for analyzing web-related activity, 'Authentication' is used to monitor authentication events, and 'Network Traffic' helps in analyzing network communication and traffic patterns. These types of data are essential for security event monitoring and management in Splunk ES. 'Anomalies' is not typically categorized as a separate ES data model but can be part of the analysis performed on the data collected in the other models.