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With the Controlled Content Block you can create a Content section where you have control over which blocks are allowed. Use this block if you have a section where you only want paragraphs. The block also features a filter to control who can change which type of blocks are available. The possible allowed core blocks are paragraphs, lists, headings, and images. If you would like to add or remove blocks from these choices there is a filter for that too.
The block also features a filter to remove the meta box for selecting allowed blocks for certain users.
<a href="https://wpblockbuddy.com/blocks/controlled-content-block/" rel="nofollow ugc">View Information on filters and additional documentation.</a>

Controlled Content Block

Thorsten Frommen

Kalimah Apps

Joe Bailey-Roberts

This a Gutenberg plugin that adds an outline around each block. Outline settings are based on user meta. Each user can 
change the settings according to their needs and it will applied only to their account.
Users can change:
<ul>
<li>When to show outline. On hover or always displayed.</li>
<li>Lock outline for a single block.</li>
<li>Disable outline completely.</li>
<li>Show data (name and class) outside block, inside or floating when hovering over block</li>
<li>Change outline color.</li>
<li>Change outline style to solid, dashed or dotted line</li>
<li>Change padding size</li>
<li>Show/hide block name</li>
</ul>
<h3>Filters</h3>
<ul>
<li>editor_outline_default_user_meta 
You can override the default user meta by using this filter. The filter will receive the default user meta as an array and 
you can return a modified array. 
Check github repo for more information. https://github.com/kalimahapps/Editor-Block-Outline#filters</li>
</ul>

Editor Block Outline

Great work. I've been considering making a similar plugin myself, so I'm glad I found this one before I did. It works well and makes it considerably easier to see where each block is. Especially useful when you have blocks within blocks. i.e. Group -> Columns -> Column -> Paragraph

Makes Gutenberg usable

I like this.

When I edit multiple blocks, this plugin help me.

Very useful plugin

Add outline around Gutenberg blocks while editing

Controlled Content Block vs Editor Block Outline