wpForo Forums is the best WordPress forum plugin. Full-fledged yet easy and light forum solution for your WordPress website.
Demo: https://wpforo.com
Docy is the perfect WordPress theme for creating comprehensive documentation, knowledge base, and LMS websites.
Demo: https://themeforest.net/item/docy-documentation-and-forum-wordpress-theme/31370838
Tessera is a modern knowledge base, support forum, help desk WordPress theme.
Demo: https://themeforest.net/item/tessera-knowledge-base-support-forum-wordpress-theme/23527937
Simple Forum is the responsive bulletin board and community forum software that can be used to stay in touch with a group of people or can power your entire website.
Demo: https://codecanyon.net/item/simple-forum-responsive-bulletin-board/13289844
Tikidocs is a knowledge base theme developed for the centralization of website theme development department information.
Demo: https://themeforest.net/item/tikidocs-knowledgebase-support-forum-wordpress-theme/22497559
This addon provides discussion facility between Academy Lms Course instructor and course students.
Demo: https://codecanyon.net/item/academy-lms-course-forum-addon/28562281
ProForum, developed on the robust Laravel 10 framework, serves as a versatile platform for professionals.
Demo: https://codecanyon.net/item/proforum-professionals-forum-and-jobs/48755957
Forym (formerly WP Pro Forum system) allows you to add a clean and user-friendly discussion forum to your website.
Demo: https://codecanyon.net/item/wp-pro-forum-system/6537267
This addon provides discussion facility between Academy LMS Course instructor and course students. Using this addon, students can ask and post questions which is visible to instructor and fellow students too.
As in other forums, users can reply or click Like / Dislike. The topic here could be a question or an opinion.
Demo: https://www.enginethemes.com/themes/forumengine/