I recently finished The Secret Society of Tea and Treason by India Holton. It's a light-hearted rivals-to-lovers romance with plenty of literary references and innuendos. Plenty of fun.
I'm currently reading Book Reviewing edited by Sylvia Kamerman, with some idea that I could improve how I approach writing book reviews. It's intended for folks writing for journals or newspapers. Because it was published in 1978, the Internet doesn't feature at all. I'm curious how the advice holds up for an Internet-connected world.
I'm not sure that I understand your request (alternative as compared to...?), but I have used isbn.nu for many, many years now.