I am not sure which form should I select? What is the purpose of the forms?

You could basically collect any data any data through JotForm forms, you could browse on our templates page where you will find them ordered by industry and form types. 

https://www.jotform.com/form-templates/

This guide will help you to use form templates: https://www.jotform.com/help/106-How-to-use-the-form-templates 

You could also provide us more details about what you're looking for, we will be glad to help you.