I've been talking about this with a friend and he asked me: How do you get your first customers for a cunsulting business? What do you think are the best ways?
Prove you're an expert.
Write a blog, post videos, publish a book, build some software, write a detailed report, interview other experts.
There are two challenges to getting customers:
1) Getting noticed and
2) Convincing people you can deliver
Doing the above is a good step to do both.