Hello you should try the Velocette from the rig exchange. This is the purest clean tube amp sound I've heard in a long time.
I don't know who posted it but thanks for profiling such a great antiquity !
You could also try the lancer, the nailor, the 10:00 conford harlequin, mesa transatlantic cleans, and the fender pro junior, they are all excellent clean profiles. As specified below , most rigs can sound interesting just by turning gain down.