i need a new mouse, wireless, idk which one to get
If you like Ergo then the Deathadder V3 Pro.
For non ergo mice, anything from the Superlight, Viper V3 Pro, Pulsar, Zowie, Ninjutso would be ideal mice for gaming at the moment. You could just look at which mice pros use. Most common would be the Superlight. You might as well go to any shop and see if they have them on display, just try feeling the material and grip and decide for yourself.
Also if you have the budget Wireless is way better, and I don't think I would ever go back to using a wired mouse. I currently use the Viper V3 Pro, but I had the Superlight prior to that.