What are some attractive customer segments for selling logo design services?

I would like to sell logo design services with fast turnaround and low prices (around 250-300 USD). I have 6+ years experience with logo design, and a decent portfolio. After validating the business model, I plan to have junior designers create the logos under my direction, to keep the cost low for the client.

At the moment I am looking for a customer segment / target market to sell this for, so I can customize the service to suit them.

Do you have any ideas?