Flipboard is rolling out the first phase of joining the fediverse:

In this first phase we are partnering with 27 publishers and creators to help them federate their Flipboard accounts and gather feedback. This includes a range of publishers covering global news, tech, music, gaming, travel and science as well as a few content creators like Erin Brockovich and Jefferson Graham.

I tested following one of these accounts in Micro.blog and it’s working pretty well.