djekanovic

This plugin is extension for Elementor, it creates new widget called “Frontend Post” which you can use to provide functionality for frontend post submission. Also there is TinyMCE editor and custom code for users that are not logged in.
https://www.youtube.com/watch?v=8jV69_Wy65c
<h4>What’s New?</h4>
1.2
<ol>
<li>Added Category Option</li>
<li>Minor Fixes</li>
</ol>
<h4>Usage</h4>
Best Practise for plugin would be:
Giving clients option to publish post’s from frontend without exactly giving them backend access.
<h4>Some Resources</h4>
API Code <a href="https://apppresser.com/wp-api-post-submission/" rel="nofollow ugc">apppresser.com</a> 
Frontend Media Button Code <a href="https://derekspringer.wordpress.com/2015/05/07/using-the-wordpress-media-loader-in-the-front-end/" rel="nofollow ugc">derekspringer.com</a>

Frontend Post for Elementor

This plugin is extension for Elementor, it creates new widget called "Frontend Post" which you can use to provide functionality for frontend …

whatsthebigidea

/
Ideas
If someone has an idea they want to bring into the world, now they can start an idea working group on your WordPress! Allows a user to post an idea to an Ideas page at /Ideas/. A BuddyPress group with bbPress forum 
 are automatically created when this post is published!
-During installation, there is a prompt to auto-install the required plugins: User Submitted Posts, BuddyPress, bbPress and WordPress Classic Editor. 
 -The User Submitted Posts required plugin is used to provide the way for users to post an Idea. 
 -The users post appears in wp-admin to be edited and published by the site admin. 
 -When published, a BuddyPress group with bbPress forum are created automatically! 
 -Ideas posts are all displayed on the /ideas/ page. 
 -The Ideas page displays links to the BuddyPress group, a donate url, and has a description of the Idea. 
 -The data contained in the ideas.xml file is displayed on the /ideas/ page. 
 -The Ideas from any other sites can be displayed on the /ideas/ page. 
 /
<h3>Arbitrary section</h3>

BigIdeas

Allows a user to post an idea to an Ideas page at /Ideas/. A BuddyPress group with bbPress forum are automatically created when this post is published …

Frontend Post for Elementor vs BigIdeas