Hello, I am creating an e-commerce site for a client with Editor X and this client asks me to personalize the “shop” page as in the photo, that is to say horizontally. Editor X only offers vertical products. Do you have any solutions for me! 
thank you !
You can use repeaters and Velo.
To know more about repeaters: https://support.wix.com/en/article/editor-x-using-repeaters
To know more about Velo: Velo API Reference - Wix.com
I had the same idea but I have over 1100 products on the e-commerce site with several options and I must have a filter with a lot of categories.
This is should be possible with repeaters and Velo as @workiapps said.
However, if you feel this is outside of your zone, there is always the option to ask for help, or simply tell your client you are unable to do it
You would have to create a custom store with velo.