How to properly organize tags in the database and the selection?

Question

Backend

I master the backend on a tangent, I write test projects for self-study.
Faced with the issue of organizing tags.
How to bind them, for example, to articles?
Do you need to create a separate table for them and indicate in this table the articles to which the tag is attached? Or indicate the id of the attached tags in the article?
Or in general, in one of the fields of the article, list the tags on one line with a separator?
Or maybe there are other ways?
I wonder which option is the most correct, effective .. logical. Well, it's easy to do.
Perhaps there is some functional difference in using tags with these methods? For example, it seems to me that if the tags have their own table, then it is easier to search.

Answer 1

The most rational is to create three tables. posts, tags and post_tags

Answer 2

https://github.com/spatie/laravel-tags