There are various tools available to create opt-in pages efficiently.
Some popular options include landing page builders like Unbounce, Leadpages, and Instapage.
These tools provide user-friendly interfaces, templates, and customization options for designing and optimizing opt-in pages.
Additionally, email marketing platforms such as Mailchimp, ConvertKit, or Constant Contact often offer built-in features for creating and managing opt-in forms.