Missio Alliance
Missio Alliance describes their aims this way:
We are seeking to launch an initiative that offers in-depth theological and practical direction for the many pastors and leaders attempting to navigate the challenges of ministry in a Post-Christianizing era. We are seeking to create a space where theological concepts can be discussed and even debated. Where conversation space is allowed for and encourages freedom of exploration, not fearing a phrase like “theological innovation.” The goal is “to stand firm in the one Spirit, striving together for the faith of the gospel” (Phil. 1:27). This is a gospel mission imperative.
Their website offers a variety of useful resources, including a writing collective that produces regular blog-style content, a collection of affiliated podcasts, information about annual gatherings, and a variety of for-purchase resources.