@muneomi 👀🙏
https://www.bonsai-art-museum.jp/en/ Please give me some time to look into the others.
Thank you my fren 🙏
The most popular garden in Japan. It's quite far from Tokyo. https://www.adachi-museum.or.jp/en/
It's Kokedera in Kyoto. You need to make a reservation in advance to visit. https://saihoji-kokedera.com/en/
A bonsai garden in Kyoto. https://www.bonsaiempire.com/
I found a travel guide for Kyoto, in case you need it. https://kyoto.travel/en/