Aria Renae
Aria Taylor
Aria Nicoll
Aria Brooklyn
Aria Janelle
I really like one syllable middle names for Aria... I think they flow nicely, as it's already 3 syllables long, so names like:
Rose, Lynn, Joy, Mae, Lee, Jade, Hope, Lou, Grace, Belle, Sage, Clare...
Elizabeth , Marie , Lynn , Nicole
Aria Rose , that's beautiful!
For spelling I would think they would be pronounced differently. Aria I would think ar-e-a and Arya I think are-ya.
For middle name, I really like the Lynn suggesting.