Your opinion on a baby name please.?

well i don't know why but i like names that sound sort of like nicknames, or are native american or somthing like that....suggestions??? I am trying to decide, if it's a boy to name it Izzy Or Taz....which one sounds better to you??? and girl...Cherokee, Sahara, or Nikky. If you agree with my boyfriend about these name being dumm, then do you have suggestions??? (NOT A SUPER NORMAL OR COMMON NAME PLEASE))