I have a box full of failed mice purchases. I hate how huge and bulky most of them are, it's very uncomfortable.I won't buy a mouse without making sure it fits comfortably with my hand. This is something the guys (the salespeople at Staples are mostly young guys) have trouble understanding. To them a mouse is a mouse is a mouse as far as size and shape are concerned, but I've had to explain to them that A. I have small hands; and B. I also have arthritis. A comfortable fit is critical.
I've had good luck with slim mice - they fit just perfectly and are comfortable to use. I like ones such as this:
https://smile.amazon.com/Wireless-Vssoplor-Portable-Computer-Computer-Black/dp/B09KL31QDT


Anyways, the case arrived dented. So now I have to wait on a replacement case.