A lot of folks are grappling with, "What comes next? How do we atone for our part in what happened?"
We Jews have a ~700 page book you can turn to, The Gateway to Repentance. It painstakingly catalogues what true atonement requires.
But I want to tell you WHY we have this book.
Have you heard of Maimonides, aka The Rambam, aka Rabbi Moshe ben Maimon?
He was a Torah scholar, Saladin's doctor, wrote widely on mysticism and rationalism, and was super controversial.
He lived in Spain. Here's a common rendering:
He was born in 1138. He wrote The Guide for the Perplexed. In the late 1100s, controversy erupted over the fact that he had the gall to suggest that Torah scholars should work rather than live off of benefactors, and that his Mishneh Torah was more helpful than many rabbis.
The Guide for the Perplexed attempts to reconcile science and philosophy with rabbinic Judaism. This is no small thing! Assimilation in Spain and France was rampant among Jews, and many were not happy about this work, to put it lightly.
So the author of the book I posted, Shaarei Teshuvah, is Rabbi Yonah of Gerona. He is born in 1180. Unlike Maimonides, he spent all day learning Torah. He is related (by blood and marriage) to the Ramban, aka, Nachmanides, aka Rabbi Moses ben Nahman.
(Maimonides dies in 1204.)