Which movies are the *most* like Sifu in aesthetic, mood etc.?

I know Sifu is something of an homage to Kung-fu and martial arts films as a whole but I also know there are plenty of martial arts films that feel quite different to Sifu.

What movies would you say feel the most like Sifu?

I think for me, the Squats give a huge Raid 1 vibe. And, to my shame, I haven’t seen Oldboy yet but I know the hallway section is a nod to an iconic scene from that movie.

But what else would you all recommend?