Hello, give me an example of Mary Sue/Gary Stu characters.

A good, commonly referenced example of a Mary Sue character is Bella from Twilight. A Mary Sue/Gary Stu character is a character with no flaws, basically. This video may be some help: https://www.youtube.com/watch?v=YhrfhQbY0K8

I know what Mary Sue means, good video though :)
I think that good example is Kirito from SAO and Tohru from Fruits Basket. Do you know more characters like that?