Best monoblock amps for $2000 used

I would be looking for tube amps. My speakers are Silverline audio
Sonatina Mk IV's. I listen to mostly jazz, and some rock from the 60's
and 70's. Room size?It's an open floor plan, with the listening area
probably 14' by 18'.

tinlub, I owned a "Son of Ampzilla" back in the seventies. Great amp as
I remember. Thanks for the memories.

mofojo, I have the Jolida fusion pre, but haven't used it yet. I will look into
the Odyssey product you mentioned. I'm currently using a Jolida fusion
801 integrated amp. Any comment on the comparison of the Odyssey
vs the 801?

Thank you all for your input. I see I indeed have a considerable number
of options in the $2000 range.
Quicksilver, Odyssey, Classe’ M700 monos and Jolida jd 3000a to mention a few. Also, there's been comments on solid state as an option.
Honestly, I thought "class D" amps were mostly for car installs and most
receivers. What an education this site can provide. I've looked into both the Jeff Rowland 201's and Bel Canto ref500/ref1000. Can you help explain the pros and cons of a "D" amp hooked up to a tube pre?