How to design a successful Tauriel

[mark12_30]

This thread is not, I repeat NOT, for Itaril-Tauriel bashing. If you want to do that, pleaes go to the "Itaril" thread in this same forum (Movies).

This thread is for posting constructive ideas that might help PJ work Tauriel into the plot in such a way that:
1. Tolkien would not be horrified
2. Tolkien scholars would not be horrified
3. Barrowdowners would not be horrified

Again: if you want to insist that she will be totally useless, please go to the other "Itaril" thread.

This thread is for constructive ideas as to how she can SUCCESSFULLY add to the plot from a canonical perspective. What possible gaps could she fill in? Are there places sketched by Tolkien that beg for a female elvish answer? Where, when, and how might a female elf named "Forest Daughter" be a SUCCESSFUL ADDITION to the plot of The Hobbit?

You may include recommendations on what she should not do and/or be AS LONG AS you do include thoughtful, constructive recommendations as to what she COULD OR SHOULD do and/or be.

And yes, I have a few ideas, but I'd like to see if someone else can also come up with something positive.