Saji

Mahdi Yazdani

MyPreview

This plugin designed with extensibility in mind for data that should be associated with a particular block type but need not have any defined meaning. <code>data-*</code> attributes will allow you to store extra information on different Gutenberg blocks, without other hacks such as non-standard attributes, appending properties on DOM, or modifying a block as HTML which will throw a block validation error when opening the post edit page once again.

Block Data Attribute

Saved me from having to build it myself. Surprised this still isn't built into native block functionality. Thank you!

Time saver

This plugin designed with extensibility in mind for data that should be associated with a particular block type but need not have any defined meaning.

Vadim Bogaiskov

Media file (image) does not contain field for title attribute, only for alt attribute.
Plugin add text into title attribute from alt attribute when image is inserted into post if title attribute is empty.
As alternative see plugin <a href="https://wordpress.org/plugins/restore-image-title" rel="ugc">‘Restore Image Title’</a> by Les Bessant. 
The ‘Restore Image Title’ inserted the post title into title attribute.

Title like Alt

Restores the title attribute from Alt attribute when images are inserted into posts

Block Data Attribute vs Title like Alt