Frontend/Guest post | Both logged in and not logged in users can post | Admin can list the posts and take native WP post actions | Highly customizable
Really Simple Guest Post Plugin will help you to generate a guest posting form in the simple and easiest way.
This plugin renders a beautiful Front-end form to with title and description editor to allow users to save their Custom Posts.
Guest Post Simplified Plugin will help you to accept post from any visitor in the simple and easiest way. All guest posts will be saved as draft.