Possible Ginsburg replacements if she retires?

[Citizen (The) Doctor]

Are there any African-American or Asian-American female judges that President Obama can nominate to replace her that can be confirmed by a Republican Senate?

There's Akhil Amar, although obviously not female.

[Citizen (The) Doctor]

As some have alluded, no nominee would be confirmed unless perceived as a moderate, as to which there is a reasonable prospect that the person would not be a reliable liberal block justice, absent unusual circumstances.

I could see Republicans allowing through a liberal to replace the liberal Ginsburg.

I don't see why the Republicans wouldn't take the chance to just replace Scalia or Kennedy with someone just as conservative in exchange for a liberal taking over Ginsburg's seat.