If you’re not sure whether you want tube or SS sound, check out the 6H30 based preamps. Great tube! Super clean, linear, and resolving.
If you want a more traditional "sweet" tube sound, I'd stick to those that use 6922 or 6SN7 in their circuit.
Tube Vs. SS Preamps
Oddly in +25 yrs in the hobby, I’ve never really owned a tube preamp. Can you comment on what the differences are in general sonic terms? I want a really fatigue free sound with lots of body (I run class A and class AB solid state amps).
Do you find SS preamps to be fatiguing typically, more so on average than tube ones? Or is it simply the added bloom that's appealing with tube preamps?