You may have seen this already but has some interesting ideas:
“The Shadow of the Wind by Carlos Ruiz Zafon (Lucia Graves translator)
Historical fiction set in Barcelona”
4.3 ⭐️’s on Goodreads”
The Fountains of Silence by Ruth Sepetys
Historical fiction/Young adult fiction set in Madrid, Spain.
4.31 ⭐️’s on Goodreads”
“The Queen's Vow: A Novel of Isabella of Castile
Historical fiction set in Segovia, Granada & Seville, Spain.
3.92 ⭐️’s on Goodreads “
“The Spanish Promise by Karen Swan
Romance/historical fiction set in Madrid, Spain.
3.96 ⭐️’s on Goodreads”
https://www.travelbugtonic.com/blog/spain-books
From the comments:
“How about a book, set in the seventies, and based on a true story, of a British family moving to Spain in their Rolls Royce:
The Fontainebleau – where the love affair with Nerja, Spain began. “
Ok, now I want to visit Spain!