Adding posts to a lightbox style script

Hello, I’m not sure exactly what kind of plugin I need for this, hopefully someone on here knows.

On the home/archive pages of a blog I am building I have a grid of thumbnails (featured images) only. Instead of these linking to the actual post/page, I’d like them to trigger a lightbox type of element that has a description of the post/page.

From there, the user would be able to either continue (via read more) to the post or close it and continue searching the grid.

Any insight is greatly appreciated!