Good Peripherals

Howdy.

Anyone have a setup that is somewhat ergonomic and comfortable when moving across various loadboards/screens and having to be as fast as possible? I have been using an old gaming mouse for about a year but its just not cutting it. Thought about getting a usd number pad or maybe a split keyboard but I'm not sure. Don't wanna start blowing cash without hearing if someone else has a better solution. For context I am on the carrier side at the 3PL I work at so looks do not matter of course.