Book recommendations for a slow reader?

Hello everyone, I hope you are doing fine.

I am posting here hoping to get some ideas of what to read. Let me be more specific:

I don't read much, perhaps one book per year. That is something I am trying to change.

I remember reading 1984 in the past and finishing it in few hours, it got me hooked. I have Fahrenheit 451 also in my list.

During this summer, I have read a couple of books about geopolitics (around 300 pages), because it is a topic that interests me. But many times I read late at night, and the content takes some effort to actually follow and understand.

So, my intention is to find something lighter in complexity, more fantastic. Perhaps war novel. I am also interested in chess, programming, nature, photography or history.

Any suggestion is welcome, thanks for your time!