Kanda is 1 station south of Akihabara and is an interesting place to stroll around in its own right. Some of the backstreets are really fascinating. The walk from Kanda to Akihabara is charming and is a must-do on any trip to Tokyo.
Just 2 stops the other way (south) is the delightful Yurakucho – another must-see.
Yurakucho to the south.