Radek Mezulanik

This contact form contains Google reCaptcha as requirement. You can choose to accept attachment or not. 
If you use Classic editor, you will have a button for shortcode here.
Possible shortcodes:
<ol>
<li>
[contact]
</li>
<li>
[contact email=”yourmail@example.com” subject=”Your subject”]
</li>
<li>
[contact email=”yourmail@example.com”]
</li>
<li>
[contact subject=”Your subject”]
</li>
</ol>

Zedna Contact form

Contact from with attachments and reCaptcha in shortcode.

Mario Peshev

DevriX

DX Delete Attached Media

Does exactly what its supposed to do. Been looking for a plugin like this for some time.

Great plugin

Automatically deletes attached media from posts and custom post types added via the Media button.

Zedna Contact form vs DX Delete Attached Media