WPForms is a plugin for WordPress. It is a drag and drop form builder for WordPress websites. At YouTube there is a video called WPForms Overview – Best WordPress Contact Form Plugin. At their website they have an instructional video on how to create a simple form. Click the link at the bottom right to watch the video. This information may be all you need to get started with your form.
You can create Contact Us forms, for example. You can customize your forms. You can connect your form to an email marketing service such as Mail Chimp. There is a lot more you can do with your forms, such as applying CSS to them so that they look just like the rest of your website.
Review at wpbeginner
There is an article written in May of 2020 that reviews the 5 best contact form plugins. The articel is called 5 Best Contact Form Plugins for WordPress Compared.