Tatiana is a beautiful name that I think is used more frequently in the African-American community. I prefer it a bit over
Tiana, but both names are elegant.
I do prefer the spelling
Rebekah over
Rebecca, but I'm not really a fan of the name in general. It's not pleasant-sounding to me at all. I think I'm not a fan of names that start with
Re-, and the harsh B and K sounds don't help.