Our web part that supports a ToC style list on the right-hand side of the page. The Table of Contents Web part offers an easy way to manage the headings on a SharePoint modern page with simple styling options available.

Have you ever wanted to build an FAQ-style page in SharePoint Online where the heading section supports collapse/expand?
Accordions are typically used on longer pages where readers benefit by shortening the pages with sections that are expandable / collapsible at the heading. This reduces the scrolling and condenses the content by topic or heading, allowing the reader to quickly scan for the content of interest and expand the section to reveal the content.