Choosing the best gaming mouse for Dota 2 depends on personal preferences, playstyle, and hand size. Here are some popular  best gaming mice for dota 2   that have been well-received by the gaming community:

Logitech G Pro X Superlight:

Lightweight design
HERO sensor for precise tracking
Customizable buttons
Wireless for freedom of movement
SteelSeries Rival 600:

Dual sensor system for accurate tracking
Adjustable weights for customization
Split-trigger buttons for improved click feel
RGB lighting customization