A few classic small-group approaches work well:

• Build triangles: Arrange head heights so the faces form a triangle or overlapping triangles. This usually looks balanced and natural.
• Bring heads closer together: People look more connected when their heads are relatively close instead of spread far apart.
• Use seated + standing layers: A classic family or work portrait is to seat one person or a couple, then place the others standing behind and slightly to the sides. This adds shape and depth.
• Think in sub-groups: If the group gets bigger, make pairs or mini-groups that work on their own, then connect those groups visually.
• Try a more playful setup: For younger or energetic groups, action poses like a coordinated jump can feel lively. Use a fast shutter speed and/or flash to freeze motion.
• Add interaction: You can create a less formal look by separating one person slightly and directing gaze—some looking at the camera, others at each other, or at that person.

In general, avoid lining everyone up at the same height with large gaps between them. Vary height, reduce empty space, and create a sense of connection.