The good ways to create a website like reddit.com:

• Choose the Right Content Management System (CMS) for Your Forum - First and foremost, you must decide the content management system (CMS) to use for your forum.
• Get Web Hosting and a Domain Name-You'll need a domain name and web hosting for your WordPress website to go live on the internet.
• Choose a Forum Theme- WordPress themes are pre-designed website templates with content blocks that allow you to easily edit your text, graphics, and other site features. Navigate to Appearance > Themes > Add New and type 'forums' into the search field to locate free WordPress themes.
• Activate a Forum Plugin- WordPress does not have a built-in forum feature. Installing a forum plugin on WordPress is required to build a forum.
• Make a change to your forum's settings. -You can edit the forum plugin settings to suit your needs if you have a forum plugin installed and activated, such as bbPress.  for example, has a lot of adjustable features, including forum privacy settings, user login settings, and forum visibility.

Read More: How do I fix the battery drain issue?