Help your members navigate the community. Give a quick video tour of the Slack or Discord space. Educate them about the channels and get them started with posting their introduction.
Use Loom, include the video in your email communication and pin it on Discord/Slack.
Use Amberscript to transcribe your video to text if needed.
Use Bonjoro to share a personalized selfie video clip along with the welcome email, explaining significance of he community.
Here's a great example:
Additionally, you could get your most active contributors to create 1 minute video guides around:
How they use the community space effectively
What hacks do they use to keep up with what's happening
Any recommendations on what to do when stuck with questions