Onboarding flows are crucial for customer success and reducing churn, as they introduce users to a platform's interface or new features. These flows should be tailored to the user's needs and goals, and can include methods such as video, images, GIFs, product tours, tooltips, and clear messaging. The onboarding process is not limited to just the initial sign-up; it continues throughout a user's lifecycle with the platform. Some excellent examples of user onboarding flows in SaaS companies include Airtable, LinkTree, Zendesk, Grammarly, Joy, Asana, HubSpot, DataCamp, and Slack.