robpannell

From the plugin admin screen you can create rules by specifying a key word or phrase along with an existing 
WordPress category. Th plugin then scans post titles for the key, and adds the specified categories as appropriate. 
By default the plugin will automatically check newly created posts when a page is loaded, however this can be set to manual via a button in the admin screen.
I can’t guarantee any support, but if you use the support forum I will do my best to help you with any issues. 
Feel free to suggest improvements too.

Smart Categories

This simple plugin adds categories to posts based on key words or phrases in the title.

Risto Niinemets

Most commonly taxonomy sorting plugins will create a new interface to drag or order/sort your terms. This plugin uses the built-in view just to make things easier. Just grab the term and drag it to a new position. No more extra clicks – everything is saved after repositioning!

The Taxonomy Sort

I would advise against using this plugin. In the latest WordPress update, selected categories are no longer displayed on the posts page. Deactivating the plugin shows the selected categories once again. It's too bad, this was a useful tool.

Broken in WordPress 4.7

Allows you to easily change the order of different taxonomies/terms/categories.

Smart Categories vs The Taxonomy Sort