Tubes do it for me, personally. I have come around the circle many times... First SS, then tubes, then SS, then mixed, now all tubed again. They may or may not float your boat--you need to listen and "see."
The only caution is tube amplifiers that are well-designed to meet high-current and low-impedence demands are typically much more expensive than "decent" SS amps. It can be somewhat expensive to get a "stout" tube amp willing to drive an odd load like a Magnepan or Electrostatic speaker. I know my old Jolida 202a was NOT up to the task of a pair of Martin Logan SL3's... It sounded terrible, in fact.
However, I have heard good things about the PrimaLuna Prologue One and Two driving MartinLogan Aerius i's, so there certainly are budget components that can drive difficult loads.
Historically, Audio Research has been a favorite pairing. Bill Johnson of ARC fame helped get Magnepan off the ground, and they are located in the same town. ARC amps usually have huge power reserves and drive difficult loads easily. You can find good used ARC amps for very cheap--ARC has historically tended to appeal to audiophiles, who seem to trade their gear constantly. So always lots of ARC on the used market. If you end up liking tubes, they are a good co. to look into.