This add-on should help you in your work with your projects in Blender. It can highlight similar objects in your scene by the following criteria:

-Similar size or instance copies

-Objects that have the same material

It's very simple, but it helps when you need to sort something, and the objects have different names and hundreds of them.

The add-on works with Blender version 3.6, and is planned for Blender 4.2 in the near future.

I actively used it in my work on an engineering model of a car when I needed to remove unnecessary bolts or clips, and there were hundreds of them, but little time to work.