The most important aspect to consider is the output impedance of a tube preamp. The lower it is , the better it is going to drive SS amps. One of the very few preamps that can drive ANY SS amp is CAT. It has the same 100ohm output impedance as the hybrid GAT LLoydelee21 mentioned. However, CAT is all tube with an outboard power supply.
Dealer disclosure.
Dealer disclosure.