Need help with a name.....

In my book one of my main characters is an assassin.
Assassins have a million names which they can go by. The best have a million and one. The one name is their real name, the name they were given as a child.
My character has a million and one names.
He is best known as the assassin 'Quazar'. He also goes by other pseudonyms.

What I need help with is his real name. I have a name for him I just hate how it's spelled.
Finian (fin-e-yan)
I've tried other spellings, but nothing so far.
Please help think up a different spelling for his name.

Names I've tried:
finian
finnian
fynian
fynnian
finyan
finiyan

Thank you for your help.
p.s. I don't mind if the name is spelled weirdly, I like those types of names.