Jatinder Pal Singh

This plugin generates POST Title from POST content automatically. Sometimes, you forget to write the title or sometimes you don’t want to write the title. It will generate the title for you. Or you can select a statement from your post content to be a title for the post using shortcodes [agt][/agt].
How does it work? 
If you leave the title field empty, only then this plugin will work. 
There are two different ways, this plugin works: – 
* Firstly it will search the content to check whether you have used [agt][/agt]shortcode or not. If used, it will make the wrapped line as title. 
* If you haven’t used shortcode in your post, it will automatically pick first 30 characters from the post and will use them as post title.
Currently this plugin is tested with latest wordpress version 4.1, but it should work with other versions also.

Auto Generate Title

Want to save time. Do not want to write TITLE manually. This plugin is for you. No need to write the title. It will generate Post Title from your Post …

Nowell VanHoesen

This widget will get a list of post/cpt title first character. The list is then displayed as an unordered list of links. The links take the user to an archive page for the specific post type and display the posts where its title begins with the character.
If the title begins with the following words, the first character of the second word will be used:
<ul>
<li>A</li>
<li>An</li>
<li>And</li>
<li>The</li>
</ul>
Examples
<ul>
<li>‘A Cup of Joe’ will be listed under ‘C’</li>
<li>‘The Pony’ will be listed under ‘P’</li>
<li>‘Android Green is Nice’ will be listed under ‘A’</li>
<li>‘The 10 Strangest Foods’ will be places under ‘#’ (number sign)</li>
</ul>

A-2-Z Alphabetical Archive Links

Create and display a list of first characters for post/cpt titles which link to an archive of the posts/cpts that begin with that character.

Auto Generate Title vs A-2-Z Alphabetical Archive Links