There is a Ramen festival going on now till Nov.6th in Komazawa Park in Setagaya ward.
There are 18 ramen shops from Sapporo, Hokkaido (Northern part) to Miyazaki, Kyusyu ( South part). You can enjoy the variety of Miso ramen, shoyu ramen, tonkotsu ramen (pork marrow broth) from those distinctive ramen shops.
If you have any chance to visit there it is good opportunity to taste Japanese popular ramen shop.
☟ links to Ramen show in English