One weight and full linespaces.
2. Typographic Weights
Two weights then four weights.
3. Horizontal shift or Indentation
One weight with left/right horizontal shifts resulting in only two or three flush-left margins.
4. Typographic weight & linespacing
Two weights with full linespaces.
5. Typographic weights & horizontal shift
Two weights with left/right horizontal shifts resulting in only two flush-left margins.
6. Horizontal shift & linespacing
One weight with full linespaces and left/right horizontal shifts resulting in only two flush-left margins.
7. Size change & typographic weight
Two weights with changes in points size to emphasize hierarchical differences. Horizontal shifts and linespacing in option 2.