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

The newest AT7  quicksilver linestage sounds very nice.

Look for a 300b  Tube preamp if you want a beautiful lush midrange , as one example to look for ,
or a SET tube preamp .

Rogue stuff is pretty nice. I’ve been using a Rogue 66 pre for a while now, and I really dig it. No urge to upgrade (as of yet).

@tonydennison has a great idea with the Quicksilver too.

If you’re a diy kinda guy, the Bottlehead SET looks very cool too.   

For my music audio sources I’ve been using https://avahifi.com/collections/preamplifiers/products/transcendence-10-rb-preamplifier

it is a solid improvement over my Marantz preamp and a great value.

Is there such a thing as a 300b preamp? I thought that was only an amp tube?