I came across this event https://goodfest.leapness.com/about/ (no idea if it is any good)
You can find out about their previous speakers here:
https://goodfest.leapness.com/years/2021/
https://goodfest.leapness.com/years/2020/
https://goodfest.leapness.com/years/2019/
They have set up a sustainable charter – read about it here:
https://sustainablecreativecharter.com/
and an interesting PDF here:
https://goodfest.leapness.com/wp-content/uploads/2022/04/goodfest-scrapbook-2020.pdf