It would be helpful to know more about the general sound you prefer, but I have been using a Plinius 8200 MkII for a few years now. I really liked my Tyler Acoustics Taylo Reference Monitors (with Taylo stands). The system sounded so good that I actually (and unwittingly!) ended up selling a couple of pairs of speakers for Ty.
I recently moved to a larger apartment where I have more space to work with. Accordingly, I just moved up to the Linbrook Monitors (with Linbrook stands), and they are an improvement in my now larger room. More detail and larger soundstage. Either one of these speakers would be worth considering.
You could get the Taylo's with stands for $1000-1200 used. Or you could get the Linbrook's with stands for approximately $2000.
Hope that helps.