It is not the ultimate list of the best books of all times but you will find some of the best intrigue, mystery, horror and romantic novels.

See some of them below

1. Cien años de soledad (1967) by Gabriel García Márquez, Alfaguara
2. Nada (1944) by Carmen Laforet, Ediciones Destino
3. Crónicas marcianas (1950) by Ray Bradbury, Booket
4. El laberinto español (1943) by Gerarld Brenan, Austral
5. Bajo la red (1954) by  Iris Murdoch, Impedimenta
6. Las voces (1957) by Muriel Spark, Blackie Books
7. Todos quieren a Daisy Jones (2019) by Taylor Jenkins Reid, Blackie Books
8. El tambor de hojalata (1959) by Günter Grass, Debolsillo
9. Verano (2021) by Ali Smith, Amazon
10. Una libertad luminosa (2019) by T C Boyle, Impedimenta

Se the whole list here