Speaker recommendation for Home Theater

Ok.  I need some advice.  Here is some context:  I’ve been out of the HiFi game for over 10 years.  My last set of speakers were a Magnepan 5.1 setup with 1.6QR mains, CC3 center and surrounds and a REL B3 Sub.  These are starting to buzz due to old age and i figured I might just upgrade all around.    I do love the sound of the Maggies in a surround setup but could be up for a change.  Total budget would be about $15k (+/-) for a 5.1 setup.   I’d also be open to going 7.1.4 with some Atmos action down the road...  

I don’t do much 2 channel listening anymore - kids and forced-family-fun have ruled out time for me to sit anywhere for more than 30 seconds except when watching movies.  

What say you?