Alex - yeah, I think it's nice but too similar to Sasha
Scarlett - not keen
Lily - nice
Isabel - Love it
Ivy - pretty
Leila/Layla - quite like it
Jasmin - pretty. I also prefer it with an 'e'
Alice - like it
These are names I'd consider to be in a similar 'group' to Sacha:
Amber, Autumn, Ariel, Amy, Anya, Bethan, Brooke, Cerys, Camilla, Claudia, Ciara, Dana, Evelyn, Ellis, Erin, Enya, Eden, Ebony, Farrah, Freya, Faye, Giselle, Heidi, Halle, Ivy, India, Juliet, Joanna, Keira, Katie, Leah, Lyra, Lydia, Macey, Morgan, Megan, Nicole, Nadia, Nyah, Orla, Paige, Piper, Quinn, Robyn, Ruby, Seren, Sadie, Sydney, Sienna, Tegan, Thea, Verity, Willow, Xanthe, Yvette, Zia, Zara