forms on custom post types

Hello, for the first question, you can create a template for custom post types, you can usually clone your theme’s existing single.php template as a starting point: https://developer.www.ads-software.com/themes/template-files-section/custom-post-type-template-files/

The form and where and how data is displayed would depend on the way you use forms and what your want to display. You could use your own PHP scripts and database tables or leverage WordPress’s built in support for custom data tables with the dbDelta function, or you could use a plugin like Contact Form 7 which lets you embed forms in templates https://contactform7.com/faq/can-i-embed-a-contact-form-into-my-template-file/. There are many tutorials and third party plugins to integrate contact form 7 with your database.