bujanga

ggis-Subscribe gives authors an easy way to insert a form that performs emailing list subscription management. Simply add [-ggis-subscribe-] to your post and it will create an email list subscription management form. Depending on the settings and parameters you choose, it will insert either a short form, just an email address box with submit button or a full management form.
<h3>Usage</h3>
A subscription form may be inserted on a post, page, or text widget by including the following code in your text.
<blockquote>
<code>[-ggis-subscribe %formtype "%listname"-]</code>
</blockquote>
Here is an explanation of the fields:
<ol>
<li>ggis-subscribe – identifies the code (required)</li>
<li>formtype – identifies the form type</li>
</ol>
* 0, default – full subscription management form 
* 1 – subscribe only form , requires “listname” 
3. listname – identifies the list to include in a subscription only form
<h3>In a Widget?</h3>
A subscription form may be placed into the standard text widget using the methods above. For widget use, I suggest using only formtype=1, the short form.

ggis-Subscribe

Manages subscriptions to email lists. Simply add [-ggis-subscribe-] to your post.

codoc

<a href="https://codoc.jp" rel="nofollow ugc">codoc</a> is a simple and powerful WordPress paywall plugin that enables creators to sell paid articles, offer Reader Plans (Subscription / Membership), and accept tips.
Originally built for Japanese creators, codoc is also fully compatible with users in the US/EU. 
Payment is processed via Stripe, and buyers worldwide can purchase using a valid credit card (currency: JPY/USD/EUR).
After setup, the plugin adds a codoc block※ to the post editor. 
※Compatible with both Gutenberg and the Classic Editor (TinyMCE).
<h3>How it works</h3>
Content placed below the codoc block becomes the paid section and is hidden from non-buyers. 
Content placed above remains freely available.
The codoc block: 
– displays the purchase interface 
– handles buyer authentication 
– allows per-article settings such as price or Reader Plan availability 
– all revenue/customer management is available on codoc.jp
More details : 
<a href="https://codoc.jp/lp_wp" rel="nofollow ugc">codoc for WordPress</a>
Help center : 
<a href="https://codoc.jp/docs/faq" rel="nofollow ugc">FAQ</a>
<h3>Features</h3>
<ul>
<li>Article paywall </li>
<li>One-time purchases </li>
<li>Reader Plans (Subscription / Membership)</li>
<li>Tipping support </li>
<li>Stripe payments (Credit card / Apple Pay / Google Pay / Konibini) </li>
<li>Gutenberg & Classic Editor support </li>
<li>Featured image support </li>
<li>Revenue & customer management via codoc.jp </li>
<li>Insert custom HTML before/after codoc tags </li>
<li>CSS override support </li>
<li>Safe authentication & Stripe-level fraud prevention</li>
</ul>

A WordPress plugin for monetizing your website with paid articles, Reader Plans, and tipping.

ggis-Subscribe vs codoc