This plugin can list posts, pages, categories in alphabetic order (A to Z listing)

aDirectory is a lightweight, scalable, fast WordPress directory plugin for building any type of directories, classifieds, and job boards websites.

Provide you a listing and insert listing in front side of your WordPress site and you can control how user insert list or the directory privacy.

Free LINK DIRECTORY Plugin for WordPress to Curate Links for Web Directory. Link management, Directory Listings, Link Archive, Vendor Directory

Listar is Directory Listing & Classifieds for Wordpress sites