Can Someone Help Me Find a Plugin?

Hi! I’m looking for a plugin that allows me to make certain items free shipping when purchased alone but if they were to be ordered along with another product (which doesn’t come with free shipping) then I only want to charge shipping for the non-free shipping item.

Does anyone know of a plugin that can do just that? I’ve looked but I am unable to find one that does what I need.

Thank you!

Which CMS you’re using?