BuddyBoss is a premium WordPress plugin that allows users to create online communities on their websites, including engagement features like online forums and private groups. It also has options for private messaging and member connections, much like other social media platforms.

From:  https://ldx.design/buddyboss-vs-buddypress/

BuddyBossBuddyBoss is clearly the way to go if you’re looking to build a social networking site on WordPress.

Pros
Beautiful design
More useful features
Discussion forums
Zoom integration
LMS compatibility (with LearnDash, Tutor LMS, and LifterLMS)
Membership plugin compatibility (with MemberPress)
WooCommerce compatibility
Photos & albums
Emoji reactions, GIPHY integration
Likes & follows
Better documentation & support
Has a companion mobile appConsHigher price
Somewhat difficult to customize