I am working on my personal statement (and studying for exams), and hence have no time to write the supplemental essays. I shall be applying to some of the top US schools for admission in fall.

Could someone name a few genuine and good (preferably excellent) writing services or freelancers/writers?
I have about 4-5 assignments.

Also, are these sites genuine- bestessays, essaycentral.net, custompapers.com, superiorpapers and 24houressay.co.uk?