I am literally in this same situation - looking to replace my Magico A3s with something that does a little more for my heart than the Magicos can manage. After a visit to AXPONA in 2022, I was taken with two similarly-sized speakers which I’m keeping an eye out for on the used market. Those being the Piega Coax 711 (now replaced with the 811) and the very difficult-to-find Stenheim Alumine 3s.
The Piega 711s have come up for sale a few times within your price range. I’d highly, highly recommend you have a listen. Have not had a chance to listen to the 811s, though am holding out hope they’ll be at AXPONA this year.
The Stenheims appear next to impossible to find used, and might still be out of your target price range. But they’re very well reviewed and might be worth a listen if you can find them.