The correct option is Use the Follow feature on the organization's GitHub profile.

Using Follow adds an organization’s public activity to your personal feed on GitHub so you consistently see announcements and new repositories and releases from them in the interface. Your feed aggregates activity from all the organizations you follow which makes Follow the right choice when you want broad visibility across several nonprofits rather than only a few specific projects.

Watch several of the organization's repositories limits you to updates from only the repositories you choose and it does not show activity that happens elsewhere in the organization or new repositories that are created.

Subscribe to the organization's newsletter on example.com might provide updates outside GitHub but it will not surface activity inside the GitHub interface or your feed.

Attend community meetups or conferences can help you learn and connect with others but it does not provide a consistent in product activity feed on GitHub.

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