Probably “Hable con ella” but my personal favorite is “Pepi, Luci, Bom y otras chicas del montón” His films are really good; they focus heavily on personal drama, and I love that most of them are full of queer representations. His best known film is “Todo sobre mi madre” I recommend his movies, they're great. ≧'◡'≦

Now that you mention it, "todo sobre mi madre" does ring a bell.
Thanks for the recommendations!! I'll add these movies to my watchlist