Obie's suggestions are great. However, I haven't tried them all. I will note that Institut Karit while having a wonderful fragrance, didn't have a staying lather effect, often disappearing from my face prematurely. Instead, I'll use it in combination with glycerin and a mild or unscented hard soap.
I would also point out that I have hard water. My 2nd soap was VDH. Finally, achieved a real lather. My 3rd was Proraso Green. It's really my mainstay. Easy to lather, good glide and awesome menthol sensation on the skin. I highly recommend. Oh, and price was good as well.
Welcome, HoldingFast. Lot of fellow Jersey SR shavers here.
ps-forgot to add TOBS(Taylor of Old Bond Street) soap cream soaps. I have the grapefruit and its a magnificent lather, scent, glide, cushion.