Rafael Paulino

With this plugin you can place an iframe inside the TinyMCE text editor. 
You click a button in TinyMCE and a window appears to place the iframe data. 
Then just click on Ok and a shortcode is inserted with the iframe data and on the front the iframe is presented.
Com este plugin você consegue colocar um iframe dentro do editor de texto TinyMCE. 
Voce clica em um botão no TinyMCE e aparece uma janela para colocar os dados do iframe. 
Depois é só clicar em Ok e um shortcode é inserido com os dados do iframe e no front é apresentado o iframe.

Rafa TinyMCE Iframe

With this plugin you can place an iframe inside the TinyMCE text editor.

unapersona

Easily insert iframes inside the block editor.
This plugin adds an Iframe block inside the Embeds category.
Insert an external (or internal) URL by simple drag and dropping the Simple Iframe block.

Simple Iframe

No more edit the html of the iframe, put easily in block editor with height and width.
Great Job Jorge!!!

Great as simple

Works flawlessly, it does what it says it does and what it has to do. It's a perfect solution to show external contents with an iframe solution.

This is "a must" block.

Perfect solution for iframe content

Lo necesitaba, así evito añadir una colección de bloques para usar solo uno.

Sencillo y útil.

It is not necessary to create plugins with many functions, thanks Jorge for the contribution!

Simple and great

Easily insert iframes inside the block editor.

Rafa TinyMCE Iframe vs Simple Iframe