Abstract: Asakusa Kannon, Osu Kannon, Tsu Kannon
Note: This article is a response to the question What are the three major Kannon in Japan?? on MOJi Q&A.
Asakusa Kannon: Kinryuzan Asakusa Temple
Osu Kannon: Kitanozan Shinpukuji Hōshōin
Tsu Kannon: Eijizan Kannonji Daihōin
Source: What are the three major Kannon in Japan!?
These three can be mentioned together because they serve as large Kannon temples (according to Three Major Kannon in Japan - Wikipedia)
P.S. My apologies, it turns out that "Asakusa Temple" is the temple of Kannon Bodhisattva.
Additionally, I checked some other temples that I have some impression of:
"Kiyomizu Temple" is also a temple of Kannon, and the "Eleven-faced Thousand-armed Kannon statue" enshrined there is a very important cultural artifact (Chongqing person me: !? I must go see it)
"Ryoanji": The main deity is "Shakyamuni Buddha"
"Yakushiji": The main deity is also a Buddha, but "Yakushi Nyorai"
Finally, let me add the "Four Famous Buddhist Mountains in China":
Mount Wutai in Shanxi - Manjushri Bodhisattva
Mount Putuo in Zhejiang - Avalokiteshvara Bodhisattva
Mount Emei in Sichuan - Samantabhadra Bodhisattva
Mount Jiuhua in Anhui - Kṣitigarbha Bodhisattva