Another theme could be the struggle between passion and duty. The characters in the 'amor prohibido novel' may have to choose between following their hearts and fulfilling their obligations to their families, society, or other factors. For example, they might be expected to marry someone else for political or financial reasons while being in love with someone else.
One similar novel could be 'Romeo and Juliet'. It also involves a love that is in some ways prohibited due to the feud between their families. The story is a classic and explores the themes of forbidden love, passion, and sacrifice.
Vinyl Pulp Fiction could potentially be a niche genre of music or art. If it's music, it could be a blend of the raw, analogue sound of vinyl with the edgy, narrative - driven feel of pulp fiction. It might feature stories told through music, like a musical equivalent of a pulp fiction novel, with a lot of character and a sense of mystery.
Amor Towles novels are often known for their elegant prose. His writing has a certain charm that draws readers in. For example, in 'A Gentleman in Moscow', the descriptions of the hotel and the protagonist's experiences are vivid and detailed.
I don't know who the author of the 'amor eterno novel' is. There could be many novels with this name and without more specific information, it's difficult to determine the author.