I prefer
Tatiana because Katiana reminds me of
Katana which I believe means sword, but neither is my style. Here are some similar (to me at least)names that I kind of like
Katrina,
Ekaterina (nn
Katia),
Leticia ... and I'm stuck sorry :D Oh, & your name
Catriona which I think is beautiful with the "o" pronounced.
Jacks