You can easily set up links to other collections by adding a section to a collection page in Shopify, but since it is a fixed list, it is a bit of a hassle to set it up for each collection. Here is a setting method that automatically pulls in other collections that contain products listed in the collection and displays them in a list.
How to automatically display other collections that contain the same products as “related collections” on your collection page

[How to set up (Dawn theme)] Add a custom Liquid section in the theme editor and insert the code

