I’m looking for a CMO. What is the best place to find someone?

Linkedin and slack communites. Sometimes here :)

You can post on Indiehacker too, you'll get a lot of responses for the role of CMO

Try to search for Reforge alumni on LinkedIn or they also have Reforge Slack group with manyyyy experienced marketers, including CMOs and VPs :)

Attend industry events. Attending industry events is a great way to meet potential CMO candidates and learn more about their skills and experience.