Picking a power amp

Hi folks,

I'am trying to pick a power amp for a modest system(15,000)

My listening area is 12x20.

I have a MX110z tuner preamp,and a Adcom 545 100wt per channel power amp now.

I just got a Auralic Vega g1 and it sounds great to me.

I'am using tidal to the the streamer and like it a lot.

It is time to pick a power amp or speakers.

I currently have 25 year old Polk m10's and since getting the auralic,I'am fairly surprised how much better they sound.

I don't know whether to get speakers or a amp next,to get to the next level.

Amps I'am considering are Mac 225,240,275 if tube or Mac 7270 or 2205 SS.

I'am also considering AR,and CJ if I could find something 2,000-5,000

For speakers I was thinking Klipsch for tube amp or Sonus Faber if SS,if I can find a model that can do rock and used under 5,000.

I listen to 40% rock 40% pop,blues,soul 20% classical,jazz.

Any thoughts on where to go next.

Thanks