Fumiki Takahashi

TAROSKY INC.

Hametuha INC.

This plugin adds a block to your block editor. 
This block changes its display depending on a current user’s capability.
<ul>
<li>You can set capability for block.</li>
<li>If a current user has a capability for the block, its content will be replaced.</li>
<li>Or else, block is displayed as log in link.</li>
<li>This block is an inner block, so you can nest any blocks inside it. Convert it to a reusable block for your productivity.</li>
</ul>
See screenshot for how block will be displayed.
This plugin use REST API to convert block content, so you can use it with cached WordPress. 
Even if you use CDN like <a href="https://aws.amazon.com/cloudfront/" rel="nofollow ugc">CloudFront</a> or <a href="https://www.cloudflare.com/" rel="nofollow ugc">Cloudflare</a>, this plugin displays proper contents for each users.
For performance enhancement, <a href="https://wordpress.org/plugins/cookie-tasting/" rel="ugc">Cookie Tasting</a> is recommended. 
It decrease server access including REST API by checking COOKIE value before accessing to server side script.

For Your Eyes Only

Add a restricted block for specified users.

Bijingus

This plugin lets you restrict any custom post type’s content when using Paid Membershps Pro.
Simply select the custom post type you’d like to restrict for members only and a box with restriction levels will then appear when editing any post of that type.

Zesty Custom Post Types for Paid Memberships Pro

Restrict any custom post type with Paid Memberships Pro.

For Your Eyes Only vs Zesty Custom Post Types for Paid Memberships Pro