SET suggestions up to $3k (used)

Maybe Used Frankenstein 300b? I heard a pair once and they were really good. If new I would read reviews and buy some Chinese crap if at that price range. I’m sure there are others though. 

@dhcod  Your reasoning (300B / 8+wpc to drive 96dB speakers)?:

Looking for a used SET amp for my 96db speakers, so I’m looking at probably  300b's and 8+ wpc

Dennis Had Inspire SE 6550

Don't know the size of your listening room or your preferred listening level. I'm thinking you're on the right track in thinking 8 watts. I drive 93dB efficient JBL monitors with my ~7 watts of SET 300B power and really enjoy it.

I think you're in a target-rich environment, though shopping might take some patience. Just keep checking all the various audio sales websites. The equipment is out there.

How about considering a solid state class A integrated such as the Sugden A21se? It can be had for $3250. It is 30 watts of pure class A, single ended. Unless of course your heart is set on tubes. The Sugden has a similar sound to a tube Amp, without the hassle of tubes.