For anyone like me who was a bit confused about how to run a list of all reordering rules since they've moved to Replenishment, you can create a custom filter where min qty >0 or max qty >0.  I'm not sure whether there's an easier way but this got me what I needed. 

Did you use Odoo 18? I was checking in runbot and found for the 18 version the menu somehow does not exist.

Alternatively, you can access the menu reordering rule by:

• Go To Inventory -> Products -> Products
• Select purchasable product
• Click button Reordering Rules​inside in the form product (Image 1)