1. Find a category or search that drills down to gigs that do what you want to do.
  2. Filter as needed by price, language spoken, and attributes of the gig.
  3. Open any possible hits in new tabs.
  4. Write a brief for the project and message good candidates asking if they can complete the task.
  5. Ask how they handle issues where they can not achieve your vision.
  6. If they counter with revisions as the solution, let them know you have had gigs before where it became clear after a number of revisions the person would not be able to satisfy the brief and ask what they do in that case.
  7. Select the best candidate.