Product photo shortcut?

[bendee2020]

Hi all
I am currently designing my own dye sub website and after a lot of learning I am at a stage where I can start adding my products. The problem I have come across is the amount of product photos that I need to get the variations how I want them.
for example. for a phone case listing with say "image 1" I have 13 different devices and the option of black or white case. I want the customer to see the case with the selected image on the device/colour case that they choose. so that's x26 different photos for "image 1"

times that by the amount of images that I have (around 100) and I have a lot of mock ups that I need to create in order for the site to be how I want it. and that's just phone cases....

I was hoping you guys might know of a better, more automated way of creating the mock ups in photoshop? or maybe a widget?( I am making the site on wordpress/woocommerce)

any hints or tips would be much appreciated

Regards
Ben