brijrajs

Allows the user to insert a index of posts and categories on page/post using shortcodes.

Post Category Indexer

Allows the user to insert a index of posts and categories on page/post.

ridahost

list posts alphabetically: A plugin that provides an A-Z index of the posts displayed on a particular page or category based on the post title.After you activate the plugin, you do not have to do nothing .You will see the result.
This is very beta at the moment, it has only been tested . so don’t go mad if it doesn’t work for you. Let me know though.

A-Z Indexing startup

This is a simple plugin that provides an A-Z index of the posts displayed on a particular page based on the post title.

Post Category Indexer vs A-Z Indexing startup