I find being in a community of people doing what I do is extremely helpful and supportive. It makes me know this is real. They also have benefits for members and have trainings and meetings that are beneficial. The best way to network with coaches is to join the local coaching chapters, perhaps an ICF chapter or something else. I would search the internet and find coaches in your area, give them a call and see if you can meet with them.
Most coaches are very open to doing that.
Coaches do work together and more and more I am seeing coaches team up. I have several coaches that I work with on projects. I believe anything worth doing is worth doing with someone. Coaching is action oriented, it is about moving forward. If you are talking about the past and trying to figure it out, then it isn't coaching.