Cornwall IV – tube (amp) choice

I recently bought the Cornwall IVs and even while running with my old and small Rotel amp they make me pretty happy. But having listened to them plugged to a tube amp in the shop this will be the next investment. And with no proper shop around where I can compare different models and different tube types I´m depending on other people´s experiences. I know that once I have any amp here tube rolling will be the next thing to try but for now I´d like to know if someone can tell me something about different tube types or amps that work well with the Cornwall IVs (or similar sounding speakers).

Of course I´m looking for the warmth that the current amp does not provide. Also it seems that the highs are a bit too pronounced, so I´m willing to trade some of those in if it means gaining more low-mids and lows. Having said that, I´m not looking for boom, just a little more cozyness.

Some tube amps I came across:

lab12 integr4 (KT150)
Primaluna evo 300 (EL34 – I´m a bit afraid of the evo 400, 8 power tubes are a bit intimidating when it comes to rolling or exchanging broken tubes)
Willsenton R800i (300B / 805)

My desired price range is up to $3.000 but well, the primaluna are already above that limit.
As you can see I´m not afraid of chinese brands. I´m living in Europe and dependend on what´s available here.