[AZGrower]

A great low end set would be CDT Audio CL-61A.
Can be had for about $150

Higher end like Dynaudio can be found for about 4 bills. I also like the Image Dynamics CSX6 set.

Or you can go with an active set like some Seas CA18rnx mids and LPG 25nfa tweeters, but require an actively controlled crossover network to separate the frequencies to the appropriate speakers.