Team building seems (to me) to be more about leadership than management. You aren’t allocating resources, you are exemplifying values. You aren’t teaching, you are organizing experts. You are curating and tending a garden.

Team building tactics (some specifically for a remote world).

• Curious questions (interesting vs interested)
• Inspirational memes
• Common meaning
• Watercooler chats
• Scheduled together downtime - Fun and games
• Scheduled async sharing
• Rituals and running jokes