One click demo import:    One Click Demo Import is recommended to import the dummy demo data:

• First Install One Click Demo Import Plugin and activate this plugin.
• Then go to Dashboard-> Appearance -> Import Demo Data
• Then click Continue & Import data.
  

*Note:  First, you need to delete WordPress by default created pages and posts, and Do not refresh and close the page until the demo is not imported entirely.  It takes a few minutes to import complete demo data.

Contact Form 7: Contact Form 7 is recommended to create contact forms for the contact page or appointment section.

Jetpack: JetPack is recommended to make your WP sites safer and faster, help you grow your traffic, and to enable a subscription form on the subscription section.