Our Community › Forums › General Discussion › Bike Safety Talk?
Maybe check with Arlignton Civic Associations to see if they’d host you?
https://countyboard.arlingtonva.us/community/civic/
What topics are you proposing? What’s your proposed audience? Have you done this before?
You may also want to contact WABA. They have a corral of League Certified Instructors (I’m one) who are trained in safe and effective bicycling skills. If appropriate, you could find a co-instructor from that group.