Using Architecture as Composition
Strong architectural lines - pillars, arches, staircases, underpasses, brutalist grids - give you ready-made composition. Use leading lines to draw the eye to your subject. Use symmetry and then break it with a human figure.
Watch for: the architecture overwhelming the human element. You're making a street photograph, not an architectural one. The person needs to matter.
Try this: Find a strong repeating line, a staircase, a colonnade, a row of arches, frame it clean and empty first, then wait. A single human figure dropped into that geometry does all the work and gives the structure its scale.
The point: the best street photographers use cities as studios. The city is already designed. Work with it.
Any. Wide angle enhances architectural drama.
Find three strong architectural settings. Wait for a human to complete each one.