In this set up, I use two kits of INTRA diffusers attached to the Godox MF-12 flashes. I use Nikon D7200 with a macro 105mm lens. Trust me! You don't need softboxes or any other means for creating stunning photos. The best thing about this diffuser is that you get REAL-FEEL photos that don't look plastic-like or flat like what you get with softboxes.
Use the link below to learn more about the diffusers.
https://www.hantdental.com/product-page/intra-softer-diffuser