How to Decide Which Resume Writer to Hire?

I want to hire someone to help with my resume, but I don’t know how to pick the right one. There are so many options online resume writers, and some are cheap, some are expensive. I just want someone who really knows how to make my resume look good and help me get a desirable job.
What things should I check before I choose the best resume writer in uae ? If you’ve hired one before, how did you decide? Please share your tips!