Choosing a screen name/pseudonym

[morning.mirage]

This is about my sister who has been suggested to use a different name for business.
Her date of birth is 12.10.1991 (which adds up to 6). It's 3 if you only consider the date.

Can you suggest a screen name/pseudonym that would be likely to give her success in career?
She's into the creative and glamour industry- acting, modeling writing, film-making, etc

If you'd like her to use her own surname, it's "Seth".

A few suggestions about the first name includes Evelyn (which is very close to her mother's name), Kaitlyn, Adeline, Adelia (or Adela/Adella), etc