The Arizona "Finding your Tribe" board is pretty dead but, I can tell you that Flagstaff is an awesome place for families with a more natural lifestyle. It's a very family friendly town, lots of natural food stores and restaurants, lots of outdoor activities - amazing weather! I can't tell you about homeschooling since I didn't live there when I had kids (just went there for school) but from what I've heard, there is a large homeschooling community up there.
Flagstaff is a wonderful place to live and raise a family! I'm super jealous that you're moving there!
I live in Flagstaff! We homeschool and have some friends who do as well. There is a great Meetup group for natural parenting support as well.