Marcus Downing

Sometimes you want the different sites on a multisite network to share their taxonomies. 
This plugin forces a child site to use its parent’s taxonomies instead of its own.

MU Central Taxonomies

On a multisite network, this makes a child site use the main site's categories and taxonomies instead of its own.

Tran Ngoc Tuan Anh

eLightUp

Admin Taxonomy Filter helps you to filter posts or custom post types in the admin area (the post list table) by custom taxonomies. It’s similar to filter posts by categories, which is supported by default.
The plugin supports filter by multiple taxonomies and has settings to let you choose which taxonomies are filterable.
The plugin is open source and hosted on <a href="https://github.com/rilwis/admin-taxonomy-filter/" rel="nofollow ugc">Github</a>. If you have any problem or feedback, please open an issue.
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Admin Taxonomy Filter

Works fine for custom post types and help in navigation in the posts backend



Works fine for custom post types

Filter posts or custom post types in the admin area by custom taxonomies.

MU Central Taxonomies vs Admin Taxonomy Filter