Alice as a nn? Well, OK. I enjoy a challenge. How about:
Alicia /
Alyssa /
AlisonAlessandra Ailsa ("AYL-suh")
CallistaAisling ("ASH-ling")
UlyssaPlacida ("PLA-si-duh")
Aloisia ("ah-loh-EE-see-uh")
Pallas AthenaAlphonsine
It seems as thought the "al-iss" sound happens at the end of a name, but I can't put my finger on it. The only thing that came to mind is a chrysalis (insect pupa), but please don't use that. It's driving me batty.
Amaryllis?
Alice originally comes from Adelheidis /
Adelheid. So you could try one of those.