What module or component should be used to add articles to flexicontent by users?

Question

Joomla

That is, for example, a product article in a category, or an article about something in general, how to organize it so that there is functionality, in the form of a button, add your article on the topic, and it will be sent to the admin for moderation. and it remains only after checking to click to appear, or not to add, but for example to change ?.