I Am Looking for a Rhinoplasty Surgeon in Turkey. Is Dr. Onur Erol a Reputable Surgeon?

Far more important than the technique is the skill and experience of your plastic surgeon. Choose your surgeon rather than the technique and let them explain why one technique may be better than another.  See the below link on some suggestions on finding the most qualified Plastic Surgeon for you.  Always insist on a board certified plastic surgeon.

There are many experienced rhinoplasty surgeons and each surgeon has a unique set of skills and tools which may make him or her the best surgeon for that unique problem

While I do not know of any reputable Plastic Surgeons in Turkey, I do recommend that your surgeon is board-certified and part of the Turkish Board of Plastic Surgery.  These are standard in any country, much like the United States of America.