The common profession – seems to be either surgery, healing or medicine as well as serving underpriveleged people – as Virgo and Saturn is quite prominently associated with the 10th House

In the 1st chart – Sun, Ketu and Venus are in Pisces and the Lord Jupiter is in 4th House in Virgo, which shows something related to diseases – also Ketu is knife, so something related to cutting – Venus in Pisces is also about healing, Saturn aspects the 10th House – maybe related to insurance claims or something related to death

2nd Chart – Virgo is in 10th House and the Lord Mercury is in 8th House along with Sun – this also shows someone who can be dealing with death and transformation related issues – and healing those as the Zodiac in 8th House is Cancer

3rd Chart – Saturn is in Cancer in 10th House and Moon is in 12th House in Virgo – Which shows the possibility of someone dealing with old/poor people in day to day life related to diseases

4th Chart – Aries in 10th House, Mars is with Saturn in 8th House in Aquarius – Aries confirms that the person will be dealing with Physical Health and Mars in 8th also confirms the doctor and healing part.

I am not able to understand Saturn’s role here…

Sorry if my prediction is wrong