Since Kanazawa is a popular destination for Japanese people, and foreigners tend to go to Kyoto, many of the attractions in Kanazawa are less language-friendly to English-speakers. That being side, most signs are in English, and many of the main attractions still offer pamphlets and directions in E...
Miyajima is a popular day-trip location from tourists in Hiroshima, so there's quite a few people walking around town during the day. However, the last boat back to Hiroshima leaves prior to sunset, so watching the famous tori gate during the sunset will be far less crowded.
Since Okinawa was originally a separate country from Japan, Ishigaki is one of the best ways to explore Okinawan culture. There are unique food, phrases, and styles of dress visible all over the island.
There are a lot of famous foods in Hakata: motsu nabe, tonkotsu ramen, mentaiko. While there's also a few shrines and gardens, Hakata is a fairly modern city and thus doesn't have a lot of traditional cultural attractions.