There are many article writers advertising here, both native English speakers and outsourcers from Asia.
You can read reviews below their ad from people who have used the service. Check the post count of people who post positive reviews - if they are long term members with post counts of over 500 then their reviews are more reliable.
Cleaning Talk - Professional Cleaning and Restoration Forum
A forum community dedicated to professional cleaning and restoration specialists. Come join the discussion about upholstery, displays, residential, styles, scales, reviews, accessories, classifieds, and more!