Which module for megamenu on opencart?

Question

opencart

Many store templates use Mega Menu. And in this menu, pictures are inserted, several categories of goods with subcategories are pushed into one menu item, and so on.
In many themes of stores in the code I see a trace of jetimpex_megamenu

jetimpex_megamenu/jquery.rd-navbar.min.js
jetimpex_megamenu/superfish.min.js

On request, jetimpex_megamenu googles, "JX Mega Menu" and "TM Mega Menu"
Both plugins are paid, and cost a lot, is there any free alternative with the same functionality?

Answer 1

Actually, RD Navbar itself)
In the original, it is free.

Answer 2

Better try 2OC Megamenu, you can do anything with it. There was a problem with the menu, I thought it was unsolvable, the author suggested how to solve it, in general, I was completely satisfied!
Only the module is paid, among the free normal menus I have not seen it at all.