Finding a Power Amplifier for Luxman C-900U

Hello our community, I think I might need your help to choose a Power amplifier for my system (Stereo or Mono Pow is Ok). Here is my system:

- Speaker: Magico A3 (Also in love with Sonus Faber Serafino or higher is Focal Scala)

- DAC: Mola Mola Tambaqui

- LP/Phono: Technics SP10 MkII / Audia Flight Phono

- Pre: Luxman C-900U

- Pow: At the moment, Pass Aleph 0s 

- Cable: All from Acrolink series 7N

For my taste of music: 

- Vocal (Opera, Capella, Acoustic,...); Blue; Jazz;

- Sometime instrument: String (Violin, Cello, Guitar, sometime Harp), than drum and piano;

- Sometime Orchestra

- Sometime (rare) with EDM or Rock (Just pop or slow rock, super rare heavy metal)

I really want to upgrade my Aleph 0s with some of the more modern and powerful Pow within $6000 (2nd hand is also a good option), I come up with some in my mind:
- Pass Labs XA60.5 (Roughly $5k in my country for used)

- Luxman M-800a or M-900u (I can find it $6k used imported from Japan, but I love some other combination other than M-900u)

- Parasound JC 1 (Old ver, not Plus)

- Electrocompaniet AW180, or better AW400

- Audionet Amp  

- Gato PWR 222

- Moon 860A V1 (or W8?), Trigon Monolog, Mark Levinson 431-532H, Bryston 4B3,...

Hope to receive your suggestion, I really love the Class-A design and don't mind the super hot chassis.