If you pine for the nostalgia of Microsoft's revived IntelliMouse but want the performance of a thoroughly modern gaming mouse, you're in luck. After months of availability in China, Microsoft has released the gaming-oriented Pro IntelliMouse in the US. It's mostly similar on the outside (more on that in a bit) but touts a much more powerful 16,000DPI sensor with a 12,000FPS refresh rate. You should have more precise aiming than with its 3,200DPI predecessor, then. You can also customize three of the five buttons, although no one's going to mistake this for an esports-ready mouse with loads of options.
If you find this kind of shape suitable and like the other specifications as well, the Microsoft Pro IntelliMouse might be your best choice for a gaming mouse in 2019.