I would recommend the "Art of Shaving" after shave lotion (lighter) or balm (heavier), Lavender scent, for the O&C soap.
The DRH Pink is a solid recommendation to follow a shave with C&S #88, you can alternatively try a Witch Hazel with Rose scent as well.
A Penhaligons after shave or after shave balm would match a shave with C&S #88 as Pens make excellent quality stuff. However in the particular scent profile (C&W #88) it is not easy to use EF or Endymion or Opus 1870, so we are driven to a situation where Hammam Bouquet may apply/match better. Same applies to any other Pens scent containing rose.