If you’re fortunate to find a used Clayton Audio S50 while your radar is up I’d say consider yourself hugely lucky and that you jump on it ASAP. 50 and 100Wpc of sweet-sounding and pure Class-A power into 8 and 4Ohms, respectively. Read the reviews of Clayton amps and I think you’ll find them quite special too. Best of luck in your search!
https://www.usaudiomart.com/details/649787192-clayton-audio-s50-class-a-amplifier/