Need some advice????

Looking to replace my infinity overtures. Have hk avr7300 qps 1 for four rear channels. Considering b&w 804 or trying to find infinity prelude mts. Or maybe another one I haven't heard of? Help please.
A little more information would probably help, i.e., what you don't like about the Infinities, what kind of sound you're looking for, what kind of music you listen to and at what volumes, what your partnering equipment is, what your room size is and what your budget is. Stuff like that. Without that, you're unlikely to get many recommendations, good ones at least.