Good Question. Sorry I have been out of action for a while due to death of my uncle. Missed Quora
However, believing in astrology and not believing in spirituality is somewhat of a contradition. Still i meet clients who stubbornly refuse to do any dharmic remedies including gemstones and mantras etc.
Good thing for them : Planets HAVE NO RELIGION. Karma knows no discrimination.
People who don’t wish to take any religious remedy or gemstones mantras etc. have a beautiful friend KARMA.
Respecting your teachers, getting their blessings, donating to universities (not schools) and distributing brown sweets to the poor are a few non-dharmic ways of propiating Jupiter and making it strong.