You can designed Facebook Page as per your need or service, facebook comes with all kind of page category based on every possible sector of working culture. You can find all professional, personal, social, and organisatinal sector of working while optimizing your page and you need to mentioned your page category based on your purpose of doing, Facebook ask to specified your page category so that user will easily know what is your page is all about.
Broadly you can classified broad category as above image-