Module or plugin for latest product added

Hi,

Yes. The default "HikaShop content module" preinstalled with HikaShop can do that.
In fact, when you first install HikaShop on a Joomla website, it normally precreates an instance of that module with the title "latest products" which is preconfigured to display the latest products.
If you don't have it, you can always create a new instance of that module in the Joomla modules manager and configure the instance to display the latest products.
To do that, you want to use the "product_created" column in the "ordering column" setting and the "descending" choice in the "ordering direction" setting of the module.