Kodo

Slug-Free Permalinks lets you switch selected post types and taxonomies to simple ID based permalink formats.
You can choose between:
<ul>
<li><code>/post/123/</code></li>
<li><code>/post-123/</code></li>
</ul>
The plugin only affects the post types and taxonomies you enable in the settings screen.
Features:
<ul>
<li>Select individual public post types</li>
<li>Select individual public taxonomies</li>
<li>Choose slash or hyphen based ID permalink format</li>
<li>Optionally redirect legacy slug URLs to the current ID based permalink when WordPress can resolve the request</li>
<li>Preserve prefixed permalink bases such as <code>/en/</code> when another plugin adds them</li>
<li>Flush rewrite rules automatically when settings change</li>
</ul>
This plugin is focused on permalink structure only. It does not add content features or front-end UI.
Plugin page (English): https://happas.jp/en/slug-free-permalinks/ 
Plugin page (Japanese): https://happas.jp/slug-free-permalinks/
Development repository: https://github.com/1008k/slug-free-permalinks
This plugin is best suited to new sites, sites still defining their permalink policy, or structured-content use cases where slug management is unnecessary.
If your site already has a large number of published posts and established slug based URLs, review the impact carefully before enabling it. Check existing inbound links, search traffic, social shares, and editorial workflow assumptions.
Known limitations:
<ul>
<li>If a post type slug and taxonomy slug are identical, their ID based rewrite patterns can conflict.</li>
</ul>

Slug-Free Permalinks – Simple ID-Based URLs

Use ID based permalinks for selected post types and taxonomies without managing slugs.

delphiknight

Converts Georgian characters in post, page and term slugs to Latin characters. Useful for creating human-readable URLs.
This plugin is a fork of <a href="https://wordpress.org/plugins/cyr3lat/" rel="ugc">Cyr to Lat enhanced</a> plugin.
<h4>Features</h4>
<ul>
<li>Automatically converts existing post, page and term slugs on activation</li>
<li>Saves existing post and page permalink integrity</li>
<li>Performs transliteration of attachment file names</li>
<li>Includes Georgian characters</li>
<li>Transliteration table can be customized without editing the plugin itself</li>
</ul>
Based on the original plugin by Sergey Biryukov.

Geo to Lat

Converts Georgian characters in post, page and term slugs to Latin characters.

Slug-Free Permalinks – Simple ID-Based URLs vs Geo to Lat