Need plugin displaying product categories AND their subcategories on mouse hover

Got a WP that will be a store.
Got several categories, and more than several subcategories.

I have a menu on the front page that displays the categories, no problem.

What I need is when the mouse hovers over a product category,
the SUBcategories to show up. Not when clicked, but when hovered over.

Currently I have it set where you have to click on a category to show its subcategories.
But that’s not what I need/want/like…

Anyone knows a plugin/widget that can do the hover to show subcategories thing?

P.S. I’ve been trying different widgets one after another (on page 8 of 28 right now);
so far all I am finding is widgets to display the categories only…