looking for a tube preamps that doesn't sound like SS

I forgot to mention that Audio Note Kit preamps are very good and lean toward the warm side but not obnoxiously so. You can buy them as a kit or have them assembled.

I am not sure why you would a warm old school sound unless you had some deficiency in your system that would cause you to want to thicken things up. A list of your components would be helpful due the fact that a change elsewhere could solve any problem you might have. Of the advice above I dont think that the Berning, Rogue or Schiit products would give you what you want. The Berning is a wonderful preamp but it isnt particularly warm but more linear/neutral. Suffice it to say that I am not a fan of Rogue and of Schiit even less. I think that the old CJ preamps and the Joule are good units for what you want. I prefer the Joule to the old CJs.