How to add selected product in sidebar with sticky effect

Hello I would like to know how I can add a certain product in the sidebar and give it the sticky effect.
More precisely for each woocommerce product I am creating a related article in the blog, as a presentation and promotion, and in the sidebar as well as having the categories of the blog, instagram and recent posts, I would like to have a “sticky” box with the product I am reviewing and the possibility of being sent back to the cart