I spent a long time searching for a theme designed for book reviews, and I found out a great one: the VNovel theme:
It has a lot of features, a button for switch between the dark and light mode, an avatar image for the author, and each post can have a different image for the book cover, if you wish. I thought that I should come here and write about it.
If you wish to spread more themes for this purpose, you can answer this message.