The kind of chair you should look for depends largely on your requirements. For example, people looking for something to go with existing wooden dining tables should ideally limit their search to wooden chairs. Leather chairs work well in work environments, although plastic ones come in more cost-effective options. For outdoor use, consider buying wrought iron chairs. People who spend extended hours in their chair should think about buying one with armrests.
Eat, read, or work, and make sure you remain comfortable.