Bright idea for unexpected lighting: Look for opportunities to install light fixtures in alcoves tray ceilings and wall niches to trace interesting lines. Notice the hidden lights in the ceiling alcove above the cylindrical fireplace mantel here.
Another important ceiling-based light source is the pendant or chandelier. The line between these two can be blurry as a chandelier is essentially just a large (and often more decorative) pendant light. Chandeliers also are more likely to have multiple bulbs (which help create more layers) but what is or is not a pendant is still a gray area especially with more modern fixtures like the one here.
Don’t think that adding lights to your toe-kicks is a frivolous aesthetics-only decision. Strip lighting at the underside of base cabinets is a great way to create a night light that looks fabulous.