ManageWP - ManageWP is a service for bloggers, site owners and web based companies helping them manage multiple WordPress sites from one dashboard.
Jetpack - Jetpack offers SEO and security plugins for Wordpress.
MainWP - A Free, Open-source, & Self-hosted one-stop solution to manage Unlimited WordPress websites from a single dashboard. MainWP is the only management plugin with 2000+ ⭐⭐⭐⭐⭐ reviews on WP.org
WP User Manager - The most customizable profiles, community builder and membership WordPress plugin
InfiniteWP - Manage unlimited https://alternativeto.net/software/wordpress/ sites from a central admin panel.
UpStream Plugin - UpStream Plugin is a free-to-use project management plugin that allows you to manage various types of projects right from your WordPress site.