I am looking to find one that sounds close to the classic tube sound.
I won't be surprised, if i am told that none exists. But then, maybe there is one, hopefully in production.
IMHO, you said it yourself, "none exists".
There are several solid state, (or hybrid amps), that do some things as good as, or even better than, some tubed amps.
(The hybrid Lamm, and the full Class "A" Pass Labs, amps immediately come to mind).
But none of them have that classic tube sound that you state you are looking for.
If you find one, let us know!
Good Luck in your search!