your system is quite good, and so if you don’t know what specific improvements you are seeking in a component change, much less a speaker change (biggest move of all), there is no way to suggest anything that has any assurance of pleasing you more than what you have
you have to articulate what you wish were better or at least different
standmounts vs floorstanders is a total red herring, especially as you have integrated subs already
you will just get a litany of other people’s wild-ass uninformed guesses to your post, all of which will be pretty much useless to you
you are better off attending some hifi shows, or high end gear retailers and listen to what they have on display
you have to articulate what you wish were better or at least different
standmounts vs floorstanders is a total red herring, especially as you have integrated subs already
you will just get a litany of other people’s wild-ass uninformed guesses to your post, all of which will be pretty much useless to you
you are better off attending some hifi shows, or high end gear retailers and listen to what they have on display