Examples of companies building amazing brand communities?

A lot of marketers are pointing to the importance of building a strong community of brand advocates who subscribe to your values and mission. A lot of people point to Rapha and Tracksmith as examples, and I recently started Sakara. They do a wonderful job of building "The Sakara Lifestyle" and even put people who start specific meal plans into cohorts where they can talk about their progress on Slack. Does anyone have other good examples for reference?