https://www.amazon.com/Prehistoric-Japan-Perspectives-Insular-East-ebook/dp/B01LZUDTIE/ref=sr_1_1?ie=UTF8&qid=1531273550&sr=8-1&keywords=prehistoric+japan

Good overview

https://www.amazon.com/Archaeology-Japan-Cambridge-World-ebook/dp/B00EZ3VDOK/ref=mt_kindle?_encoding=UTF8&me=&qid=

Some ideas are not mainstream but it's a good overview of the Yayoi/Kofun periods

https://www.amazon.com/State-Formation-Japan-Emergence-4th-Century-ebook/dp/B000SMEMCM/ref=sr_1_1?s=digital-text&ie=UTF8&qid=1531273527&sr=1-1&keywords=barnes+state+formation+in+japan

More focused on the Kofun period