Link To Mouse
The best budget mouse in my opinion is the Glorious Model-O. The Model-O is a $50 mouse that comes in at only 67 grams. This makes is so that your aim is the most precise and accurate in Video Games as well as easier movement than heavier mice. Many mice that fall under the specifications of the Model-O are almost always twice the price so in my opinion you're getting a great mouse for a great price.
Link To Mouse
The best mouse on the market in my opinion is the Logitech G Pro X Superlight. Coming in on the weight scale at less than 63 Grams and one of the best sensors ever made on this mouse this is the best of the best. Considering there is no cable you would expect it to be heavier than the Model-O but no, this mouse was created with weight in mind and somehow Logitech made it work. The main downside of this mouse like everything that is the best of it's category is the price, the mouse comes in at $149.99 and is completely sold out right now. In my opinion, I wouldn't pay that much for a mouse, but if you are aiming to be one of the best players, you have to have some of the best gear.