If you're not going to go with anything that's popular, trendy, famous, or well-known but don't want to get stuck with foreign or fictional names (not that I'm saying you can't go there) your best bet would probably be to go with older English names that haven't been used in a few centuries. They sound right and are easy to pronounce but aren't necessarily well-known.
For a girl you could get something like Ida, Luella, Rhetta, Arlene, or Ethel.
Or if you prefer you could go for mythological names (I know others have suggested that). And of course, Greek names might be too well known so Media might not be so good but Norse names like Sif, Iðunn, Frigg, or Freya might be good (or their Anglo-Saxon equivalents Sif, Idun, Fri, and Frea). Celtic names, if you're avoiding popular, are probably not a good choice however. At one point they were rare and that's how I and my brothers all got our names. But Aidan, my brother, now resents the fact that his name is very common - in spite of the fact it used to be incredibely rare.
Of course my name, Arthur, used to be very popular. Now it's next to unheard of.
As any writer knows...
If you're not going to go with anything that's popular, trendy, famous, or well-known but don't want to get stuck with foreign or fictional names (not that I'm saying you can't go there) your best bet would probably be to go with older English names that haven't been used in a few centuries. They sound right and are easy to pronounce but aren't necessarily well-known.
For a girl you could get something like Ida, Luella, Rhetta, Arlene, or Ethel.
Or if you prefer you could go for mythological names (I know others have suggested that). And of course, Greek names might be too well known so Media might not be so good but Norse names like Sif, Iðunn, Frigg, or Freya might be good (or their Anglo-Saxon equivalents Sif, Idun, Fri, and Frea). Celtic names, if you're avoiding popular, are probably not a good choice however. At one point they were rare and that's how I and my brothers all got our names. But Aidan, my brother, now resents the fact that his name is very common - in spite of the fact it used to be incredibely rare.
Of course my name, Arthur, used to be very popular. Now it's next to unheard of.