I recently finished reading her amazing biography Chiara Corbella Petrillo: A Witness to Joy
and highly recommend it to all.
There is a website dedicated to her: Chiara Corbella Petrillo.
Crisis Magazine also did a short story about her life: Chiara Corbella: a witness to joy.
And Focus also did a story about her: Saints are still being made
And you can listen to her testimony with subtitles: Chiara Corbella Petrillo.