Retreats offer people the opportunity to give direct attention to an area of spiritual growth. If you’re unable to host a retreat in person, consider hosting a “virtual” retreat.
Perhaps a group of people agree to watch some spiritual training video then follow up with a Zoom meeting to discuss how it impacted you. Use your creativity to provide prayer guides, encouraging texts, mail out material for them to have while they experience the virtual retreat, and more!
There are many resources for material. Find material or create your own!
One resource is Right Now Media that hosts over 20,000 videos of Christian teaching from national Christian leaders. You can customize the material for your group. The following is a video about that material. Use this or any other material to help people accelerate in their Christian growth through a retreat-type experience.