What is the best place for Jupiter in a birth chart?

Best place of Jupiter in chart will differ from ascendant to ascendant as Jupiter is functional benefic planet for some ascendant where as it works functional malefic planet for some ascendant.

Jupiter will give good results in Kendra or Trikona houses for Aries, Leo, Scorpio, Sagittarius and Pisces ascendant, provided Jupiter is not debilitated.

For Taurus ascendant, best place for Jupiter will be 8^th or in 12^th house.

For Gemini ascendant, best place for Jupiter will be 7^th or in 10^th house.

For Cancer ascendant, best place for Jupiter will be 9^th house.

For Virgo ascendant, best place for Jupiter will be 4^th or 7^th house.

For Libra ascendant, best place for Jupiter will be 3^rd or 6^th house.

For Capricorn ascendant, best place for Jupiter will be 12th house.

For Aquarius ascendant, best place for Jupiter will be 11^th house.