Amp-preamp, Integrated paring with Magico A3

I'm looking for people who have had excellent results with pairing an amp-preamp, integrated to Magico A3 or similar Magico's. I recently bought a pair of A3's (love them) and I’m now looking to upgrade my electronics driving them. Currently I have a loner from a friend (not ideal) so nothing really to speak of.

I’ve heard the Constellation gear at the dealer on them and was impressed, also some top Moon (North series) gear also impressed. But I’m a tube guy so I’m also considering a tube preamp-SS amp or hybrid integrated. I just sold my Mac gear so I’m looking to move away from that. Friend has an Audio reasurch tube preamp thats quite nice in his system, Ref 6se i believe, paired with the Moon SS amp (new north searies). But dragging that and or the speakers around to try is not something either of us is inclined to do. Speakers being 110lbs each. Amp about the same lol

What have you had good success with?