Questions to ask before checkout
Does the pillow height suit your normal position? Is the firmness fixed or adjustable? Can the cover be removed and cleaned? Are the dimensions compatible with your bed and pillowcases? Most importantly, can you return the pillow if the shape does not suit you?
Reading these details before purchase is more useful than choosing solely from labels such as orthopedic or ergonomic. Personal comfort can only be judged after considering your own sleeping setup.