Are there any ready-made usefull components (widgets, etc.) for a React.js site that can be easily included in a regular page?

Question

React

Hello.
In the previous question Is it possible (and should it be) to interfere with the React.js frontend with the "regular" frontend (not SPA) within the same site? I was told that, in principle, it is possible to connect components written in React to a regular (non-SPA) site in the form of separate blocks (widgets, sidebars, etc., if I understand correctly).
Tell me, are there ready-made widgets of this kind?
I'm just curious to try it out.
Is it possible to somehow easily and simply include them in the site page? And so that the instructions were for them :)
Thank you.
PS Is there any analog for React packagist.org ??
----

Answer 1

This is how React is connected to the page Then you find the right library, connect it via cdn and use it together with React according to the documentation