Canon models use a 100 micron lens. Want to get smaller, is there any way to solve it? Like adding a magnifying glass or something.

You can't add a rangefinder to the lens of 100 micron. If you want to be smaller, the official statement is: you can add a telescopic tube of 12X or 25X, or add a close-up shot in front of the camera. There are many personal methods, such as adding close-ups, backhand, butt slapping and so on. I haven't tried other methods, so it's not easy to talk nonsense.