Don't be fooled by some plastic surgeons that claim open is best... that is because they don't know how to do closed rhinoplasty, which is much more complicated and very, very few doctors are skilled in doing it. Some of the hot doctors claim it is best but in reality it is because they don't know how to do closed. They were never taught. Swelling will last 4 to 5x longer when you do open rhino.
If a cosmetic surgeon doesn't offer you both options, then look elsewhere. And don't be fooled by his smooth talk saying he recommends open for you. Ask to see pics of patients he's done closed on. Actually check and see to confirm he's capable of doing both and is telling you the truth about why he's making his recommendation.