ReflectionMedia

This plugin allows sorting of posts alphabetically, by Post Title (ascending or descending) or Post Date (ascending or descending), customizable for each category.

WP Post Sorting

This plugin allows sorting of posts alphabetically, customizable for each category.

tierrainnovation

Smart Category Ordering is a plugin that allows you to sort your post content (per category). You can apply your sorting to a single category, or have your settings follow a category tree, covering the parent and children categories.
When sorting by “Smart Title”, that option is there to the leading ‘a’, ‘an’ or ‘the’ from a post title when sorting. This is the only difference between “Smart Title” and “Title.”

Smart Category Ordering

Allows you to alphabetize categories by post title, by trimming leading text, by post date.

WP Post Sorting vs Smart Category Ordering