List of best contact form plugins for WordPress.
1FormCraft

With the familiar drag & drop style of editing, FormCraft is a breeze to use. With a clean GUI to work in behind the scenes you simply drag the item you need from the menu and drop it in place on the form you have chosen. Everything is WYSIWYG so move it around with your cursor and drop it in place. It’s crazy simple to create complex, awesome forms.
2Contact Form 7

Contact Form 7 can manage multiple contact forms, plus you can customize the form and the mail contents flexibly with simple markup. The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering and more.
3Simple Basic Contact Form

Simple Basic Contact Form is a clean, secure, plug-&-play contact form for WordPress. Minimal yet flexible, SBCF delivers clean code, solid performance, and ease of use. No frills, no gimmicks, just a straight-up contact form that’s easy to set up and customize.
4Quform

Quform is an advanced WordPress plugin that allows you to quickly and easily build multiple forms with total control. Whether it’s a complex quote or booking form or just a simple contact form, Quform will allow you to do all this without touching any code. In a few clicks you will have a fully functional form. It’s that simple.
5WPForms

Building forms in WordPress can be hard. WPForms makes it easy. This intuitive drag & drop WordPress form builder allows you to create contact forms, online surveys, donation forms, and more in just a few minutes without writing any code.
6Formidable

Formidable Forms has all the features you need to build powerful forms and data-driven web applications.
7NEX-Forms

NEX-Forms is a high quality and simple to use drag and drop/single click form creator offering a wide range of customizability, flexibility, design and usability that will make online form building a walk in the park.
8eForm

eForm is an advanced and flexible form builder that can be integrated into your existing WordPress site. This is a complete form management solution, for quizzes, surveys, data collection, payment / cost estimation and user feedback of all kinds.
9Super Forms

Super Forms is a very user friendly plugin when it comes to building forms. With unlimited options you will be able to create any kind of forms. With conditional logic, Multipart elements and tons of customizable options and settings to adjust any color of any element to fit your needs.