Which is best?

Question

Melissa Marie is my late mother’s name

Answer

Emery Marie sounds really weird to me, since Emery contains the sounds Marie. So it sounds like you're stuttering the last two syllables of Emery. Emerymery. Awkward sounding. I'm shocked it has so many votes! 
I think any of the other three sound fine. You could even consider Emery to be honoring your mom since it contains the whole sound of the name Marie.

Which is best?

The Top Baby Tracker App: Embrace New Beginnings with Tender Care

The Top Fertility Tracker App: Your Path to Achieving Pregnancy

The Top Pregnancy App: Nurturing Your Journey to Motherhood

The Top Period Tracker for Empowering Your Menstrual Health Journey