A common pre-yom kippur ritual is doing the custom of “Kaporet” which in the old country, was swinging a chicken around your head symbolically recognizing the chicken was you and you are up to the slaughter block as it is a time of judgement. The chicken would be slaughtered and given to the poor of the community to have food for the Pre-Yom Kippur meal.
In this enlightened age where we don’t/can’t have this direct swinging to slaughter block to poor person consumption, a great replacement is donating to food pantries or other similar charites
When I lived in the US, I always gave to Masbia Soup Kitchen, where your money would be spent on food that day.
Today, I give to the chesed (kindness) organization in my city (Chesed Modiin)
Gmar Chatima Tova to the entire sub!