Best 6DJ8 tubes?

Firstly- Extirpate the Sovteks post haste. They are bad from the start and you are correct never improve. Despite Joe's Lore, my British tube Guru told me to try the CV 2493, because it is the only tube in the family that doesn't sound blike any other it is better. Not even it's more common little brother the CV2492 sounds as good. If you nlike Siemens then chan chances are good that you will like these. They are Military Mullards but don't sound like a Mullard at all.
Upscale has them in stock which is a bit odd. They had not been seen for a long while. The picture shown is unlike any I had seen before. I found them eventually from "Tango Tubes" of Sweden. As probably NOS but they did a great job imitating an NOS tube NIB, properly faded original packing cigar roll paper etc. matched and a royally expensive of course.
I have no idea if they still have these relabelled cheap Sino tubes made to look exactly like the real ones snd even managed to sound just the same as the real ones as wewll. As I said they don't sound like any other 6922 in fact they were given a special ID code E88CC-01.
Happy hunting.

Thanks all for the replies. I can tell my fascination with tube sound is gonna cost me some money before I'm done, but it's a lot cheaper that rolling different units in my system. Think my first ones to try will be the Telefunken's and the Amperex.

Colomor Electronics (UK) has an Ebay Store and still lists "grey pin E188CC 7308" tubes at $40/pair. Claim they were surplus military stock for Polaris subs. I bought a few pairs a while back and, while the acid etched code indicates 6DJ8 and not 7308 (and 7308s s/b gold pinned), they are Amperex Holland manufacture. Given the insane prices asked for vintage 6DJ8 family tubes, these may be a bargain. I've not used mine as I've moved on from gear with such tubes, but may sell them of in ten years to help fund retirement.

I use Orange label Amperex and Amperex Bugle Boys. Agree with Larryken - they are excellent.

I've tried Philips tubes, JJ, Sovtek and RCA. Now I have to say that the differences TO MY EARS (disclaimer: personal experience, no universal truth) are fairly small. I was lucky enough to stumble upon a Philips E288CC SQ. That is indeed the best sounding tube I have, but the difference with the standard E88CC from Philips is subtle. So don't start spending fortunes on very rare tubes - first try out the cheaper ones so you get a feeling of what you can achieve with tube rolling.