A lot of students ask us to recommend series to practise English listening. We recommend you watch something you enjoy! You can start with Spanish subtitles but it is better to watch with English subtitles.
Here are some suggestions:
Documentaries: Explained, Our Planet, Secretos del Deporte (Untold)
British Drama: Downton Abbey, The Crown, After Life
American Sitcoms: Friends, Brooklyn 99, How I met your mother