Help choosing floor-standing speakers.

Hi, I'm currently looking for a pair of floor-standing speakers, I'm upgrading from a Triangle Titus 202. My budget is around 400€ - 700€, would like to buy used so I can get a better deal. I've looked around a bit and found these options:
JMlab Cobalt 815, Triangle Talya, Quad 22L, Infinity Reference 50, Davis acoustics Matisse, Triangle Scalene, Kef Reference Model One/Two, monitor audio rx6, B&W CDM-7NT
I listen mainly to classical music, soundtracks, jazz, and some 70s 80s rock. Thank you in advance.