I have a wireless mouse from work that I use occasionally with zero complains (I think a Logitech G502), but as a trackball enthusiast I’d be remiss not to ask if you’ve considered one.

When set up properly, a trackball is the more ergonomic option, and for me more satisfying and accurate to use. All the disadvantages of a wired mouse disappear with a wired trackball (well, aside from the visible cable).

I have a CST L-Trac with some custom mods and it’s one of my favorite peripherals that I own, aside from my two self-built ergonomic mechanical keyboards.