When it comes to choosing computer mice, keep in mind that you won’t be using your mouse in isolation. One of the elements that can make a mouse easier or harder to use is the mouse pad on which you put it. If you have enough space, choose a larger mouse pad so that you can move more freely without having to reset your hand. Some gaming desks even have a mousepad surface to them. For comfort, you may also enjoy using a wrist pad with your mouse.
In terms of the specific computer mouse you choose, the selection process is like choosing a keyboard: consider your activities and what will best serve them. A gaming mouse prioritizes both signal response time and physical responsivity. A wireless mouse is great for its portability and flexibility. Meanwhile, you'll find ergonomic mice with an arc shape, sculpted shape or soft rubber grips can keep your hand and wrist more supported.
If you are already looking at mice and keyboards, it might also be time to consider a stylus. Or, you can always pair a drawing tablet with any computer.