Which lines of poetry are the best example of alliteration?

Nathan was a man of his word and a man who came through

Fiona fretted and paced, and feared for the future

Tiana climbed each rung of the corporate ladder, while those around her grew anxious and madder

My heart broke in anguish, and in anguish, my love shattered

The third line, "Tiana climbed each rung of the corporate ladder, while those around her grew anxious and madder" is the best example of alliteration, as the "climbed," "rung," and "around" all begin with the same sound.