CBL Soaps has introd a clone of vintage Williams Mug Soap called Tonsorial that I dare say is just as good if not better than the vintage. He made a run of prototypes (some with scent) that he is selling on clearance and let me state unequivocally that IMO this is a winner. Lathered like a dream and billowy clouds of tallowy goodness resulted in a DFS. No frills here, just pure performance.
https://cblsoap.com/
https://cblsoap.com/