boostetonwp

BTW Contact Forms is a plugin that lets you easily create and manage your contact forms (Customer support, quote requests, lead generation, recruitment, appointment scheduling, feedback and reviews, reporting or moderation, partnerships and collaborations, internal support (extranet / intranet)).
No complicated settings, no HTML or CSS code to manage. You simply choose the position and type of fields you want to include in your forms. 
That’s it! 
They then integrate seamlessly into your theme.
When your customers contact you, you receive an email and a message that can be viewed directly from your site’s administration panel. 
No risk of missing a message!
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.

BTW Contact Forms

Create contact forms easily with automatic layout and no code required.

th23

Provide your users and visitors a simple and straight forward contact form.
The modern design is very clear, easy to navigate and with light-weight JS and CSS code. One big benefit is its flexible positioning in pages and posts as a modern style block or classic shortcode.
To keep your website safe, it comes with built in spam and bot protection, by using Akisment and reCaptcha for messages sent by visitors. The plugin is continuously improved and used on live websites since 2012.
th23 Contact is built with some few goals in mind:
<ul>
<li>Simple and straight forward option for user to contact you</li>
<li>Light-weight code basis without overheads and frameworks</li>
<li>Easy to adapt styling to fit any page design and layout</li>
<li>Fight spam and bots without unnecessary hurdles (admittedly it’s a compromise)</li>
</ul>
See it in action on my <a href="https://thorstenhartmann.de/kontakt/" rel="nofollow ugc">Contact page</a>.
<h4>Usage</h4>
Simply insert a new <code>th23 Contact form</code> block into the post / page using the plus sign in the Gutenberg editor or start typing <code>/th23 Contact form</code>.
Alternatively use the <code>[th23-contact]</code> shortcode directly in the source code editor view of a post / page or insert it as a legacy shortcode block.
<h4>NOTE</h4>
The th23 Contact form block and / or shortcode can only be used once per post / page!
Any second instance in the same post / page will be ignored upon frontend rendering and not show up.
<h4>TIP</h4>
Ensure th23 contact form is enabled for the sepcific post / page – see admin area under <code>Settings</code> -> <code>th23 Contact</code>.

th23 Contact

Simple contact form via block or legacy shortcode with optional spam protection via Akismet and reCaptcha

BTW Contact Forms vs th23 Contact