It's not a fancy or stylish one
If you speak Japanese, Toriyoshi in Meguro is one of the best. It's a very small restaurant and probably not accept reservation but you can have great Yakitori in reasonable price.
Also a Yakitori stand in front of Musashi Koyama station is awesome. You will have Yakitori standing outside.
Usually I don't recommend a stylish Yakitori restaurant.
juninada
Japan