How to correctly display posts from a popup in which the same posts are in a slider?

Question

AJAX

There are for example 10 posts, and when you click on each post, a popup opens with detailed information about the current post. And in this popup there is a slider that scrolls through the following posts with detailed information.
Should I display 10 posts separately in a cycle, and display the same posts in a slider in popup? But how to make it so that by clicking on any post in the popup with the slider, the current post opens? Or is it better to do it with ajax?