If you want to play the Warcraft III you remember—without the Reforged bugs, without the login queues, and with all your old custom maps working flawlessly— 1.27b is the definitive version.
If you purchased Reforged (1.32+), you can downgrade to 1.27b using third-party tools. This is a complex process. Warcraft 3 1.27b Download
A raw database of over 100,000 multiplayer maps. Use filters to show maps uploaded before 2017 for best 1.27b compatibility. If you want to play the Warcraft III
Unofficial 1.27b downloads are notorious for containing: without the login queues