I have a couple of suggestions, but it partly depends on power needs. I prefer tubes, but one of the best amps I have heard, regardless of topography, was the Lavardin IT, only 50 watts though.
The best SS I have heard, cost no object, was the Dartzeel 8550. Unfortunately, cost is always an object, so I will never own one.
The best SS I have heard, cost no object, was the Dartzeel 8550. Unfortunately, cost is always an object, so I will never own one.