Asking here since my post was deleted twice in r/history. Thank you all in advance for taking the time to read my request!

I'm very interested in the medieval period of Western Europe, especially Portugal (its formation, the re-conquest of its land against the moors and the rise of its empire), as well as in the Sengoku period from Japan, (mostly on Nobunaga's campaign to unify the country).
I want to get into reading more history books, as I've always been a fan of pre-industrial era times, but I have a lot of trouble with doing this unless they're easy to digest and easy to understand. So I would appreciate more, if possible, a pleasant read rather than an in-depth study of the theme. The themes should be on Western Medieval Europe (Portugal, Spain, France and Italy, no Germany nor UK) and the Sengoku Period in Japan.

I've done my own searches, on this sub-reddit included, and found some books that I considered to be interesting such as Powers and Thrones by Dan Jones. I also bought a book that had been recommended to me prior, Life in a Medieval City from Frances and Joseph Gies. My problem is that I don't know which books are considered to be good, accurate accounts of history. So no matter how much I search, I will always feel afraid to spend money on something that might be considered wrong or laughable. Some other books that have caught my attention:

- The First European Description of Japan, 1585 by Luis Frois
- The Middle Ages from Hourly History
- Medieval Europe by Chris Wickham
- And from this sub-reddit's recommendation on another thread, Sengoku Jidai from Danny Chaplin

A bonus point would be a book that offers an unbiased account of history, or, if not possible, a book that doesn't demonize any side. I know from reading this sub that a lot of people advocate the stance that history is often biased, and in that case, if the books do have bias, let it be on the side of the European countries for Medieval reading (Portugal, Spain, France, Italy) or on the side of Nobunaga for the Sengoku Period reading.
Another bonus point would be for books with illustrations, although this is very niche and restrictive so don't focus much on it.

I'm fluent in Portuguese (Portugal), French (France) and English, so I'll take recommendations for any books in these languages.

I'm very new to all this, so I'll be available at any point to answer whatever questions you might have, if it helps you narrow down your suggestions.