I stopped using Amazon a while back, but it was where I got all my books for a long time. I do thriftbooks mostly now, and try to buy directly from publishers when it’s a newer book, but I’m always interested in finding new spots to cop some sweet books.
I use local libraries and bookstores mostly. When I'm reading comics/manga/big publisher fantasy I tend to pirate until I know that I like the series to justify the purchase. For theory I use a mix of the usual Marxists.org alongside my uni library, libgen, and Iskra's pdf versions of their books. I also read a lot of visual novels, usually pirated until I know I like them.
I'm currently rereading two things: The Hobbit as a bit of a comfort read, and Sekien no Inganock since I never got around to finishing it and I found its steampunk mutants setting cool. Unfortunately I forgot that its first chapter's villain is a transphobic stereotype, so I haven't continued it for the past few days. Although I'll probably push through anyways cuz the vibes are so good.
For theory I'm taking a bit of a break now that my exam season is done before I restart reading theory again.