Hello Derin, for your stone importing business, organizing your website into collections with clickable links to subproducts. Here’s how you can achieve it:

1. Manual Product Description: Edit the main collection’s description to list subproducts with links to their pages. It’s simple to set up and gives you full control, but requires manual updates and might not look as sleek if your product list grows or changes often. Here is how you do it:
Go to Sales > Products > Products. Open the main product. Edit the "Description" field to include a list of the subproducts. Use HTML to create links to the subproduct pages. For example:

<p>This Light Travertine Collection includes:</p>
<ul>
    <li><a href="/shop/light-travertine-tile-12x12">Light Travertine Tile - 12x12</a></li>
    <li><a href="/shop/light-travertine-paver-6x12">Light Travertine Paver - 6x12</a></li>
</ul>

2. Third-Party App: Use the "Website Product Bundle" app from Odoo apps store: 
https://apps.odoo.com/apps/modules/18.0/bi_website_product_bundle
https://apps.odoo.com/apps/modules/18.0/website_product_pack

It lets you group subproducts under each collection and displays them automatically—perfect for a polished, scalable solution with minimal upkeep.

3. Custom Development: If you need something unique, hire a developer to craft a custom module. It’s the most flexible option but comes with higher costs and time investment.

I’d suggest starting with the manual description for a quick win, or the Odoo app if you’re on that platform and want a dynamic, professional look. Let me know how it goes or if you need more guidance!

Thanks,
Abhay