The Sisters of St. Joseph in Toronto have created a "School Visit" Program for various topics. Although school based, you may be able to see if they will come to your youth groups.
https://csj-to.ca/ministries/schoolvisits?fbclid=IwAR0C4LCyP7Fgqg5SahEpNmxDfJo5b3GfTbxYp3ancDA6GCBjcffjM9W4Iss