Peter Kingsley is an English scholar who work with the assumption that philosophy is a spiritual practice with a spiritual purpose. This is a quite central aspect of my own view of philosophy. But it is not new. Pierre Hadot is another scholar who have
emphasized this, and who is a central philosopher for the new movement of
philosophical counseling. You could also mention Algis Uždavinys. Uždavinys (1962–2010)
was a prolific Lithuanian philosopher and scholar. His work pioneered
the hermeneutical comparative study of Egyptian and Greek religions,
especially their esoteric relations to Semitic religions, and in particular
the inner aspect of Islam (Sufism). Upon graduation he came in
contact with the writings and authors of the Traditionalist or Perennialist school,
and this influenced his comparative exegesis, notably his studies on Sufism,
the Ancient Egyptian religion, and his assertion of the substantial
continuity of Greek philosophical tradition from Pythagoras down to
the latest Neoplatonic authors. In this last claim he was
expressly indebted to Pierre Hadot.