I have a site on Blogger. I share book quotes on this site. At the same time, as of today, I started to share poems. The section below shows all my posts:
I want to create a separate area for poems and show the publications with the tag "Poetry" here. What should I do?

I imagine you are using WordPress to create your blog, in this case you need to create a loop by calling some variables that you want to display, such as number of posts, titles, thumbnail, etc.
Below I will leave a snippet of my website code and a print of how it is displayed on the front-end
I suggest you take a look at the WordPress documentation and the forum, where you can get more information about it.
If not WordPress, please provide more information about your code.