Which amplifier should i buy


Hi,
Iv'e already asked , quite similar question , but i would like to clarify my question. So , Iv'e ordered a new speakers, Magico A3 and now i want to buy an amplifier, a tube amplifier. The amount of money that i can allow myself is up to 20,000$. The possibilities that i thought about are : zesto eror 300 / vtl MB -450 series ||| signature / vac phi 170 (two - i mean transform it monobloc) . Those are the options that i thought about till now. Does anyone can recommend which is the best option in this amount of money , it doesn't have to be from the option list that i mentioned.Unfortunately  there are brands that i can not buy in my country (ISR) , for example cat....
Thanks to anyone . 
128x128haimr
Nice high quality tube preamp/or SS

 carver crimson 350 monoblocs / Sanders Magtech. 
If you are still beholden to tubes, you might consider Quicksilver V4 monos. Big bang for the buck
Another hybrid suggestion: Absolare Integrated. I've only heard them once at a show but they sounded very good, very natural.

https://www.absolare.com/integrated-amplifier/
Am I mistaken?  One poster says he runs his tubes mildly, imp-lying there is less heat.  That is incorrect, isn't it?  For Class A amps. too!
Atmas are, literally, 1 SET per channel functioning in push pull mode.
This is a contradiction in terms.