JJ, Lachlan, Milo, Easton, Indie and Saoirse would be very nice.
The actress Saoirse Ronan (who mispronounces her name, btw) has made Saoirse recognisable.
It's pronounced Sare-sha or Seer-sha, not to rhyme with 'inertia' unless you say inertia in a Dublin accent ('in-air-sha').
Suggestions:
JJ, Lachlan, Milo, Easton, Indie and Maeve
JJ, Lachlan, Milo, Easton, Indie and Finola
JJ, Lachlan, Milo, Easton, Indie and Niamh
JJ, Lachlan, Milo, Easton, Indie and Ashling
JJ, Lachlan, Milo, Easton, Indie and Alvy (an anglicisation of Ailbhe)
JJ, Lachlan, Milo, Easton, Indie and Nessa
JJ, Lachlan, Milo, Easton, Indie and Eithne (pronounced Enya)