This plugin provides similar posts title to prevent duplicate post title and publish unique post title when adding new post in admin area. When you insert your post title, similar post title will be shown under post title input.

1.0

• Hello world...

1. Upload plugin folder to the /wp-content/plugins/ directory
2. Activate the plugin through the 'Plugins' menu in WordPress
3. You can change plugin options under 'Screen Options' menu in post screen