Too many brands, too many models, too many tastes, too many price points. And you'll get too many opinions too.
So, go to whatever HiFi or HT dealers you have in your area and start listening to sets of 7.1 speakers. Once you find the speakers you really love the sound of, then select an AVR or separates that will properly drive them to whatever levels you comfortably want to listen at without the risk of clipping. Then you'll have the 7.1 HT system that's best for you. And not us.
Or have a bunch a strangers on the internet tell you how to spend your 10K.