My focus is on the models that are geometrically simple but are usually customized in terms of materials assigned to them or slight geometrical tweaking.
Go for it! The Blender Market has some cool tools in that same vein, and they typically do quite well if it’s for something enough people would find useful. Here are some great examples:
Introducing Home Builder for Blender – YouTube
https://blendermarket.com/products/bookify
https://blendermarket.com/products/spider-web-generator
https://blendermarket.com/products/nebula-generator
https://blendermarket.com/products/plating-generator
Here’s also a great video on how to make models that adapt to what you need: https://www.youtube.com/watch?v=LYKjku8EDEI
