enivid

When you publish a post or update an already published post, this plugin will format the post’s content to certain typographic rules:
<ol>
<li>
All hyphens between two words (surrounded by spaces) will be transformed to m-dashes with the non-breaking spaces ahead of them.
</li>
<li>
All hyphens between digits (without spaces) will be transformed to n-dashes. But it tries to preserve phone numbers.
</li>
<li>
All spaces following these words will be replaced with the non-breaking spaces:
<ul>
<li>at</li>
<li>or </li>
<li>and</li>
<li>the</li>
<li>a</li>
<li>an</li>
<li>in</li>
<li>on</li>
<li>of</li>
<li>for</li>
<li>to</li>
<li>as</li>
<li>i</li>
<li>or</li>
<li>my</li>
</ul>
</li>
<li>
Double and more spaces are replaced with the single ones.
</li>
<li>
All misplaced spaces near dots, colons, semicolons, exclamation marks and question marks are fixed, where possible.
</li>
<li>
Composed words with hyphens in them (e.g. easy-to-use) will be wrapped in <code></code> tags.
</li>
<li>
<code><pre></pre></code> tag and its contents are preserved.
</li>
</ol>
<h4>Problems:</h4>
<ol>
<li>
The plugin will not mess with the HTML tags or other mark-up tags delimited with < and >. It will mess with the Javascript code and such constructions as:
<pre><code> [code]
 bla bla bla
 [/code]
</code></pre>
Though, since version 6, the mess is minimized for [code] and [video] tags.
</li>
<li>
The n-dash thing will mess up with the phone numbers that have only one hyphen in them. They will be confused with the value ranges.
</li>
</ol>
<h3>Thanks to</h3>
<a href="https://www.artlebedev.ru/typograf/" rel="nofollow ugc">Typograf by Artemy Lebedev</a>

Post Typographer

Adds non-breaking spaces, `` tags, common spaces, tags and dashes where needed. Works with English texts only.

kontur.us

We are going wild with the fonts in the Gutenberg RichText editor toolbar. Change font family and/or size on each word or even a single letter – just as you like! This one is for the font-lovers. You can set up to 5 fonts. And even can set CSS-classes you want them as well to be applied to. In addition, you can specify, name and select up to 4 font weights and font sizes.
Take a walk on the wild font side
<ul>
<li>add up to 5 custom fonts to your editor blocks (Gutenberg)</li>
<li>set your individual CSS-classes you want those fonts to be applied to </li>
<li>set up to 4 individual font sizes</li>
<li>set up to 4 different font weights</li>
<li>fonts and sizes can be even applied to a single word OR even single letters!</li>
</ul>
<h3>Font family</h3>
Change the font for individual words, phrases or even letters inline in the Gutenberg editor. 
This works automatically for most blocks (“Paragraph Block”, “Heading Block”…). 
On the settings page you can activate up to 5 fonts and give them friendly names. And at the same time enter several CSS classes to which these fonts should be assigned. 
Being able to name the fonts can be very handy for the other editors on your site as they rarely know the font names, only where they are used most of the time. So you could just name your heading font “our headings” etc. for easier work.
<h3>Font size</h3>
Up to four font sizes can be set. 
The font sizes can also be named to make it easier for editors to use in the Gutenberg editor.
The font size is calculated as a percentage of the base font size. Changing a font size setting on the settings page will change that font size across the site.
Font sizes can be assigned inline in the editor to sentences, words or even individual letters.
<h3>Font weight</h3>
Set up to 4 different font weights from 200 to 900 and give the font weights their own names to make them easier for editors to use. Example: You could call the font weight 900 “supder-duper bold”. Just be creative, it’s your backend!
<h3>Demo</h3>
Want to play around with it? 
Check the 
<a href="https://playground.wordpress.net/?blueprint-url=https%3A%2F%2Fwordpress.org%2Fplugins%2Fwp-json%2Fplugins%2Fv1%2Fplugin%2Fkontur-font-o-mat%2Fblueprint.json%3Furl_hash%3De9ae0e399a1597d01f2040a9b7b5a627" rel="nofollow ugc">Demo on WordPress Playground</a>
<blockquote>
Want more 
 Please get involved and send uns your ideas. Via email or on the WordPress support page 🙂
</blockquote>
Uninstalling
This plugin cleans up after itself. All plugin settings will be removed from your database when the plugin is uninstalled via the Plugins screen.

kontur font-o-mat

Going wild with fonts on Gutenberg editor!

Post Typographer vs kontur font-o-mat