I don't know how helpful this will be, but there's more to a power amp than the tubes. I have a push-pull EL34 based amp and a SET 2A3 amp. They sound very, very different, but circuit topology has a lot more to do with that than the tube types. Or put it this way, you can get radically different sound from the same tubes used in different types of circuits. Or even just tweaking the circuits will make a change - the 2A3 amp has regulated DC power on the tubes. If you changed that to unregulated AC (as some advocate) it would sound different.
Moreover, the power supply changes the sound, too. You can rectify the AC with tubes or diodes. Each has its own sound.
If that isn't enough, each amp will react slightly differently based on the speakers it is connected to. Crossovers each have unique characteristics from brand to brand and individual drivers have very individual impedance curves and other quirks. An amp will sound different with each speaker it is connected to.
Confused yet?
First,
do not look at this decision as a right/wrong choice. There are many amps that are reliable, sound good and will make you happy. The odds of finding one that meets those goals is good.
The best way to set about finding an amp is to find threads or a user group discussion of your speakers. Find out what the other owners use - there are people who have put a lot of research into the correct amp. Use their knowledge and advice.
Some people say you shouldn't mix tubes and solid state in a signal chain, but there's no good reason you can't. I've heard it done well, and am planning to do it myself when I get the final (?) speaker rig together. The Orion+ needs a multichannel solid state amp to power drivers individually from the active crossover. I can live with that, but I'm a tubehead, so I plan to run an Electra-Print Ultrapath preamp into it.
Sorry if this came across as sort of vague, but there are multiple factors beyond output tubes that have a heavy influence on sound. I think you'd be better of Googling your speakers with the word "amp," making a list of the models you get repeated hits for, then searching for that model along with your speakers' model for comparisons. You should be able to generate a list of contenders, then search more to learn more about each amp. Not exactly cut and dry, but you'll learn a lot along the way and, hopefully, other people will take a lot of the wotk out of it for you.